add spotless GitHub action

disable existing linter so we don't double-lint with diff rules

.github/workflows/linter.yml

@@ -15,20 +15,20 @@ jobs:
 
     steps:
 
-      - name: Checkout Code
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
+      # - name: Checkout Code
+      #   uses: actions/checkout@v3
+      #   with:
+      #     fetch-depth: 0
 
-      - name: Lint Code Base
-        uses: super-linter/[email protected]
-        env:
-          # Only lints new/edited files
-          VALIDATE_ALL_CODEBASE: false
-          DEFAULT_BRANCH: main
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          IGNORE_GITIGNORED_FILES: true
-          VALIDATE_GOOGLE_JAVA_FORMAT: false
-          VALIDATE_JSCPD: false
-          VALIDATE_MARKDOWN: false
-          JAVA_FILE_NAME: 'checkstyle.xml'
+      # - name: Lint Code Base
+      #   uses: super-linter/[email protected]
+      #   env:
+      #     # Only lints new/edited files
+      #     VALIDATE_ALL_CODEBASE: false
+      #     DEFAULT_BRANCH: main
+      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      #     IGNORE_GITIGNORED_FILES: true
+      #     VALIDATE_GOOGLE_JAVA_FORMAT: false
+      #     VALIDATE_JSCPD: false
+      #     VALIDATE_MARKDOWN: false
+      #     JAVA_FILE_NAME: 'checkstyle.xml'

.github/workflows/spotless.yml

@@ -0,0 +1,24 @@
+name: Spotless
+
+on:
+  push:
+    branches-ignore: [master, main]
+  pull_request:
+    branches: [master, main]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  spotless:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: 17
+      - run: ./gradlew spotlessCheck