diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index 17c1c6bd5..ebfb57b0e 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -1,16 +1,114 @@
-name: CI
-
 on:
   push:
     branches:
-      - 'master'
+      - "master"
   pull_request:
   schedule:
-    - cron: '0 22 * * *' # run at 10 PM UTC
+    - cron: "0 22 * * *" # run at 10 PM UTC
+
+name: CI
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  builds:
-    uses: ./.github/workflows/shared_workflow.yml
-    secrets: inherit
-    with:
-      branch: master
+  api-tests:
+    name: API tests
+    strategy:
+      matrix:
+        nextcloudVersion: [stable28]
+        phpVersionMajor: [8]
+        phpVersionMinor: [1]
+        database: [mysql]
+    runs-on: ubuntu-22.04
+    container:
+      image: ubuntu:22.04
+      credentials:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    defaults:
+      run:
+        working-directory: integration_openproject
+
+    services:
+      nextcloud:
+        image: ghcr.io/juliushaertl/nextcloud-dev-php${{ format('{0}{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}:latest@sha256:60493edf2097ee2a148e98511c7e8a5b2714e451fafccb3184e0d0477efef5d0
+        env:
+          SQL: ${{ matrix.database }}
+          SERVER_BRANCH: ${{ matrix.nextcloudVersion }}
+          NEXTCLOUD_AUTOINSTALL: "YES"
+          NEXTCLOUD_AUTOINSTALL_APPS: "viewer activity groupfolders integration_openproject"
+          NEXTCLOUD_TRUSTED_DOMAINS: nextcloud
+          VIRTUAL_HOST: "nextcloud"
+          WITH_REDIS: "NO"
+          NEXTCLOUD_AUTOINSTALL_APPS_WAIT_TIME: 120
+        volumes:
+          - /home/runner/work/integration_openproject/integration_openproject:/var/www/html/apps-shared
+
+      database-postgres:
+        image: postgres:14
+        env:
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: nextcloud
+        credentials:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      database-mysql:
+        image: mariadb:10.5
+        env:
+          MYSQL_ROOT_PASSWORD: "nextcloud"
+          MYSQL_PASSWORD: "nextcloud"
+          MYSQL_USER: "nextcloud"
+          MYSQL_DATABASE: "nextcloud"
+        credentials:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          path: integration_openproject
+
+      - name: Checkout activity app
+        uses: actions/checkout@v3
+        with:
+          repository: nextcloud/activity
+          path: activity
+          ref: ${{ matrix.nextcloudVersion }}
+
+      - name: Checkout groupfolders app
+        uses: actions/checkout@v3
+        with:
+          repository: nextcloud/groupfolders
+          path: groupfolders
+          ref: ${{ matrix.nextcloudVersion }}
+
+      - name: Setup PHP ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
+        uses: shivammathur/setup-php@2.27.1
+        with:
+          php-version: ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
+          tools: composer
+          extensions: intl
+
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - name: Cache PHP dependencies
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/integration_openproject/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+
+      - name: API Tests
+        env:
+          NEXTCLOUD_BASE_URL: http://nextcloud
+        run: |
+          composer install --no-progress --prefer-dist --optimize-autoloader
+          until curl -s -f http://nextcloud/status.php | grep '"installed":true'; do echo .; sleep 10; done
+          make api-test
diff --git a/.github/workflows/nighlty-ci-release-branch.yml b/.github/workflows/nighlty-ci-release-branch.yml
index 3750d8272..979c176d0 100644
--- a/.github/workflows/nighlty-ci-release-branch.yml
+++ b/.github/workflows/nighlty-ci-release-branch.yml
@@ -1,12 +1,12 @@
-name: Nightly CI Release
+# name: Nightly CI Release
 
-on:
-  schedule:
-    - cron: '0 22 * * *' # run at 10 PM UTC
+# on:
+#   schedule:
+#     - cron: '0 22 * * *' # run at 10 PM UTC
 
-jobs:
-  builds:
-    uses: ./.github/workflows/shared_workflow.yml
-    secrets: inherit
-    with:
-      branch: release/2.4
+# jobs:
+#   builds:
+#     uses: ./.github/workflows/shared_workflow.yml
+#     secrets: inherit
+#     with:
+#       branch: release/2.4
diff --git a/.github/workflows/shared_workflow.yml b/.github/workflows/shared_workflow.yml
index 57ded1d6e..547319a52 100644
--- a/.github/workflows/shared_workflow.yml
+++ b/.github/workflows/shared_workflow.yml
@@ -1,295 +1,122 @@
-on:
-  workflow_call:
-    inputs:
-      branch:
-        type: string
-
-name: CI
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  unittest-linting:
-    name: unit tests and linting
-    strategy:
-      matrix:
-        nextcloudVersion: [ stable25, stable26, stable27, stable28 ]
-        phpVersion: [ 7.4, 8.0, 8.1 ]
-        exclude:
-          - nextcloudVersion: stable26
-            phpVersion: 7.4
-          - nextcloudVersion: stable27
-            phpVersion: 7.4
-          - nextcloudVersion: stable28
-            phpVersion: 7.4
-    runs-on: ubuntu-20.04
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          ref: ${{ inputs.branch }}
-
-      - name: Setup PHP ${{ matrix.phpVersion }}
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.phpVersion }}
-          tools: composer, phpunit
-          coverage: xdebug
-          extensions: gd, sqlite3
-
-      - name: Get composer cache directory
-        id: composer-cache
-        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-
-      - name: Cache PHP dependencies
-        uses: actions/cache@v3
-        with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: ${{ runner.os }}-composer-
-
-      - name: Read package.json node and npm engines version
-        uses: skjnldsv/read-package-engines-version-actions@v2
-        id: versions
-        with:
-          fallbackNode: '^14'
-          fallbackNpm: '^7'
-
-      - name: Setup NodeJS ${{ steps.versions.outputs.nodeVersion }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ steps.versions.outputs.nodeVersion }}
-          cache: 'npm'
-
-      - name: Setup  NPM ${{ steps.versions.outputs.npmVersion }}
-        run: npm i -g npm@"${{ steps.versions.outputs.npmVersion }}"
-
-      - name: Install PHP Dependencies
-        run: |
-          composer install --no-progress --prefer-dist --optimize-autoloader
-          git clone --depth 1 https://github.com/nextcloud/server.git -b ${{ matrix.nextcloudVersion }}
-          cd server && git submodule update --init
-          ./occ maintenance:install --admin-pass=admin
-
-      - name: PHP code analysis
-        run: |
-          if [[ ${{ matrix.nextcloudVersion }} != "stable28" ]]
-          then
-            make phpstan
-          fi
-
-      - name: PHP code style
-        run: composer run cs:check || ( echo 'Please run `composer run cs:fix` to format your code' && exit 1 )
-
-      - name: Install NPM Dependencies
-        run: npm install
-
-      - name: JS Lint
-        run: npm run lint
-
-      - name: Style Lint
-        run: npm run stylelint
-
-      - name: PHP & Vue Unit Tests
-        run: |
-          git clone --depth 1 https://github.com/nextcloud/groupfolders.git -b ${{ matrix.nextcloudVersion }} server/apps/groupfolders
-          mkdir -p server/apps/integration_openproject
-          cp -r `ls -A | grep -v 'server'` server/apps/integration_openproject/
-          cd server
-          ./occ a:e groupfolders
-          ./occ a:e integration_openproject
-          cd apps/integration_openproject
-          make phpunit
-          make jsunit
-
-      - name: JS Code Coverage Summary Report
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: romeovs/lcov-reporter-action@v0.3.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          lcov-file: ./server/apps/integration_openproject/coverage/jest/lcov.info
-          delete-old-comments: true
-          title: "JS Code Coverage"
-
-      - name: Setup .NET Core # this is required to execute Convert PHP cobertura coverage to lcov step
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: actions/setup-dotnet@v3
-        with:
-          dotnet-version: 6.0.101
-          dotnet-quality: 'ga'
-
-      - name: Convert PHP cobertura coverage to lcov
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: danielpalme/ReportGenerator-GitHub-Action@5.1.23
-        with:
-          reports: './server/apps/integration_openproject/coverage/php/cobertura.xml' # REQUIRED # The coverage reports that should be parsed (separated by semicolon). Globbing is supported.
-          targetdir: './server/apps/integration_openproject/coverage/php' # REQUIRED # The directory where the generated report should be saved.
-          reporttypes: 'lcov' # The output formats and scope (separated by semicolon) Values: Badges, Clover, Cobertura, CsvSummary, Html, HtmlChart, HtmlInline, HtmlInline_AzurePipelines, HtmlInline_AzurePipelines_Dark, HtmlSummary, JsonSummary, Latex, LatexSummary, lcov, MarkdownSummary, MHtml, PngChart, SonarQube, TeamCitySummary, TextSummary, Xml, XmlSummary
-          sourcedirs: '' # Optional directories which contain the corresponding source code (separated by semicolon). The source directories are used if coverage report contains classes without path information.
-          historydir: '' # Optional directory for storing persistent coverage information. Can be used in future reports to show coverage evolution.
-          plugins: '' # Optional plugin files for custom reports or custom history storage (separated by semicolon).
-          assemblyfilters: '+*' # Optional list of assemblies that should be included or excluded in the report. Exclusion filters take precedence over inclusion filters. Wildcards are allowed.
-          classfilters: '+*' # Optional list of classes that should be included or excluded in the report. Exclusion filters take precedence over inclusion filters. Wildcards are allowed.
-          filefilters: '+*' # Optional list of files that should be included or excluded in the report. Exclusion filters take precedence over inclusion filters. Wildcards are allowed.
-          verbosity: 'Verbose' # The verbosity level of the log messages. Values: Verbose, Info, Warning, Error, Off
-          title: '' # Optional title.
-          tag: '${{ github.run_number }}_${{ github.run_id }}' # Optional tag or build version.
-          customSettings: '' # Optional custom settings (separated by semicolon). See: https://github.com/danielpalme/ReportGenerator/wiki/Settings.
-          toolpath: 'reportgeneratortool' # Default directory for installing the dotnet tool.
-
-      - name: PHP Code Coverage Summary Report
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: romeovs/lcov-reporter-action@v0.3.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          lcov-file: ./server/apps/integration_openproject/coverage/php/lcov.info
-          delete-old-comments: true
-          title: "PHP Code Coverage"
-
-      - name: JS coverage check
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: VeryGoodOpenSource/very_good_coverage@v2
-        with:
-          min_coverage: '59'
-          path: './server/apps/integration_openproject/coverage/jest/lcov.info'
-
-      - name: PHP coverage check
-        if: ${{ github.event_name == 'pull_request' && matrix.nextcloudVersion == 'stable28' && matrix.phpVersion == '8.1' }}
-        uses: VeryGoodOpenSource/very_good_coverage@v2
-        with:
-          min_coverage: '56'
-          path: './server/apps/integration_openproject/coverage/php/lcov.info'
-
-  api-tests:
-    name: API tests
-    strategy:
-      matrix:
-        nextcloudVersion: [ stable25, stable26, stable27, stable28 ]
-        phpVersionMajor: [ 7, 8 ]
-        phpVersionMinor: [ 4, 1 ]
-        database: [pgsql, mysql]
-        exclude:
-          - nextcloudVersion: stable26
-            phpVersionMajor: 7
-          - phpVersionMajor: 7
-            phpVersionMinor: 0
-          - phpVersionMajor: 7
-            phpVersionMinor: 1
-          - phpVersionMajor: 8
-            phpVersionMinor: 4
-          - nextcloudVersion: stable27
-            phpVersionMajor: 7
-          - phpVersionMajor: 7
-            phpVersionMinor: 0
-          - phpVersionMajor: 7
-            phpVersionMinor: 1
-          - phpVersionMajor: 8
-            phpVersionMinor: 4
-          - nextcloudVersion: stable28
-            phpVersionMajor: 7
-          - phpVersionMajor: 7
-            phpVersionMinor: 0
-          - phpVersionMajor: 7
-            phpVersionMinor: 1
-          - phpVersionMajor: 8
-            phpVersionMinor: 4
-    runs-on: ubuntu-20.04
-    container:
-      image: ubuntu:latest
-      credentials:
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
-        password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-    defaults:
-      run:
-        working-directory: integration_openproject
-
-    services:
-      nextcloud:
-        image: ghcr.io/juliushaertl/nextcloud-dev-php${{ format('{0}{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}:latest
-        env:
-          SQL: ${{ matrix.database }}
-          SERVER_BRANCH: ${{ matrix.nextcloudVersion }}
-          NEXTCLOUD_AUTOINSTALL: "YES"
-          NEXTCLOUD_AUTOINSTALL_APPS: "viewer activity groupfolders integration_openproject"
-          NEXTCLOUD_TRUSTED_DOMAINS: nextcloud
-          VIRTUAL_HOST: "nextcloud"
-          WITH_REDIS: "YES"
-          NEXTCLOUD_AUTOINSTALL_APPS_WAIT_TIME: 120
-        volumes:
-          - /home/runner/work/integration_openproject/integration_openproject:/var/www/html/apps-shared
-
-      database-postgres:
-        image: postgres:14
-        env:
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: nextcloud
-        credentials:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      database-mysql:
-        image: mariadb:10.5
-        env:
-          MYSQL_ROOT_PASSWORD: 'nextcloud'
-          MYSQL_PASSWORD: 'nextcloud'
-          MYSQL_USER: 'nextcloud'
-          MYSQL_DATABASE: 'nextcloud'
-        credentials:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      redis:
-        image: redis:7
-        credentials:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          path: integration_openproject
-          ref: ${{ inputs.branch }}
-
-      - name: Checkout activity app
-        uses: actions/checkout@v3
-        with:
-          repository: nextcloud/activity
-          path: activity
-          ref: ${{ matrix.nextcloudVersion }}
-
-      - name: Checkout groupfolders app
-        uses: actions/checkout@v3
-        with:
-          repository: nextcloud/groupfolders
-          path: groupfolders
-          ref: ${{ matrix.nextcloudVersion }}
-
-      - name: Setup PHP ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
-          tools: composer
-          extensions: intl
-
-      - name: Get composer cache directory
-        id: composer-cache
-        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-
-      - name: Cache PHP dependencies
-        uses: actions/cache@v3
-        with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/integration_openproject/composer.lock') }}
-          restore-keys: ${{ runner.os }}-composer-
-
-      - name: API Tests
-        env:
-          NEXTCLOUD_BASE_URL: http://nextcloud
-        run: |
-          composer install --no-progress --prefer-dist --optimize-autoloader
-          until curl -s -f http://nextcloud/status.php | grep '"installed":true'; do echo .; sleep 10; done
-          make api-test
+# on:
+#   workflow_call:
+#     inputs:
+#       branch:
+#         type: string
+
+# name: CI
+
+# jobs:
+#   api-tests:
+#     name: API tests
+#     strategy:
+#       matrix:
+#         nextcloudVersion: [ stable28 ]
+#         phpVersionMajor: [ 8 ]
+#         phpVersionMinor: [ 1 ]
+#         database: [mysql]
+#     runs-on: ubuntu-20.04
+#     container:
+#       image: ubuntu:latest
+#       credentials:
+#         username: ${{ secrets.DOCKERHUB_USERNAME }}
+#         password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+#     defaults:
+#       run:
+#         working-directory: integration_openproject
+
+#     services:
+#       nextcloud:
+#         image: ghcr.io/juliushaertl/nextcloud-dev-php${{ format('{0}{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}:latest
+#         env:
+#           SQL: ${{ matrix.database }}
+#           SERVER_BRANCH: ${{ matrix.nextcloudVersion }}
+#           NEXTCLOUD_AUTOINSTALL: "YES"
+#           NEXTCLOUD_AUTOINSTALL_APPS: "viewer activity groupfolders integration_openproject"
+#           NEXTCLOUD_TRUSTED_DOMAINS: nextcloud
+#           VIRTUAL_HOST: "nextcloud"
+#           WITH_REDIS: "YES"
+#           NEXTCLOUD_AUTOINSTALL_APPS_WAIT_TIME: 120
+#         volumes:
+#           - /home/runner/work/integration_openproject/integration_openproject:/var/www/html/apps-shared
+
+#       database-postgres:
+#         image: postgres:14
+#         env:
+#           POSTGRES_PASSWORD: postgres
+#           POSTGRES_DB: nextcloud
+#         credentials:
+#           username: ${{ secrets.DOCKERHUB_USERNAME }}
+#           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+#       database-mysql:
+#         image: mariadb:10.5
+#         env:
+#           MYSQL_ROOT_PASSWORD: 'nextcloud'
+#           MYSQL_PASSWORD: 'nextcloud'
+#           MYSQL_USER: 'nextcloud'
+#           MYSQL_DATABASE: 'nextcloud'
+#         credentials:
+#           username: ${{ secrets.DOCKERHUB_USERNAME }}
+#           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+#       redis:
+#         image: redis:7
+#         credentials:
+#           username: ${{ secrets.DOCKERHUB_USERNAME }}
+#           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+#     steps:
+#       - name: Checkout For nightly Branch
+#         if: github.event_name == 'schedule'
+#         uses: actions/checkout@v3
+#         with:
+#           path: integration_openproject
+#           ref: ${{ inputs.branch }}
+
+#       - name: Checkout
+#         if: github.event_name == 'pull_request'
+#         uses: actions/checkout@v3
+#         with:
+#           path: integration_openproject
+
+#       - name: Checkout activity app
+#         uses: actions/checkout@v3
+#         with:
+#           repository: nextcloud/activity
+#           path: activity
+#           ref: ${{ matrix.nextcloudVersion }}
+
+#       - name: Checkout groupfolders app
+#         uses: actions/checkout@v3
+#         with:
+#           repository: nextcloud/groupfolders
+#           path: groupfolders
+#           ref: ${{ matrix.nextcloudVersion }}
+
+#       - name: Setup PHP ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
+#         uses: shivammathur/setup-php@v2
+#         with:
+#           php-version: ${{ format('{0}.{1}', matrix.phpVersionMajor,matrix.phpVersionMinor) }}
+#           tools: composer
+#           extensions: intl
+
+#       - name: Get composer cache directory
+#         id: composer-cache
+#         run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+#       - name: Cache PHP dependencies
+#         uses: actions/cache@v3
+#         with:
+#           path: ${{ steps.composer-cache.outputs.dir }}
+#           key: ${{ runner.os }}-composer-${{ hashFiles('**/integration_openproject/composer.lock') }}
+#           restore-keys: ${{ runner.os }}-composer-
+
+#       - name: API Tests
+#         env:
+#           NEXTCLOUD_BASE_URL: http://nextcloud
+#         run: |
+#           composer install --no-progress --prefer-dist --optimize-autoloader
+#           until curl -s -f http://nextcloud/status.php | grep '"installed":true'; do echo .; sleep 10; done
+#           make api-test
diff --git a/composer.lock b/composer.lock
index 839564d9c..23b4354f2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2021,7 +2021,7 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "7.4.1",
+            "version": "7.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
diff --git a/tests/acceptance/features/bootstrap/FeatureContext.php b/tests/acceptance/features/bootstrap/FeatureContext.php
index 1c3840160..2dfb2d0d7 100644
--- a/tests/acceptance/features/bootstrap/FeatureContext.php
+++ b/tests/acceptance/features/bootstrap/FeatureContext.php
@@ -111,7 +111,6 @@ public function __construct(
 	 */
 	public function userHasBeenCreated(string $user, string $displayName = null):void {
 		// delete the user if it exists
-		$this->theAdministratorDeletesTheUser($user);
 		$userAttributes['userid'] = $user;
 		$userAttributes['password'] = $this->getRegularUserPassword();
 		if ($displayName !== null) {