Remove PostgreSQL service from CI workflow

The PostgreSQL service and related health checks have been removed from the Continuous Integration (CI) workflow. These elements were initially involved to ensure the database was ready before testing, but subsequent changes no longer necessitate this step.

.github/workflows/ci-workflow.yml

@@ -49,21 +49,6 @@ jobs:
     runs-on: ubuntu-latest
     needs: setup-postgres
 
-    services:
-      postgres:
-        image: postgres:latest
-        ports:
-          - 5432:5432
-        env:
-          POSTGRES_DB: handihub
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: root
-        options: >
-          --health-cmd="pg_isready -U postgres -d handihub"
-          --health-interval=10s
-          --health-timeout=5s
-          --health-retries=5
-
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -77,17 +62,6 @@ jobs:
       - name: Grant execute permission for gradlew
         run: chmod +x ./gradlew
 
-      - name: Wait for PostgreSQL to be ready
-        run: |
-          for i in {1..10}; do
-            if pg_isready -h localhost -p 5432 -U postgres; then
-              echo "PostgreSQL is ready"
-              break
-            fi
-            echo "Waiting for PostgreSQL..."
-            sleep 5
-          done
-
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with: