chore(deps): update actions/setup-java action to v4

.gitea/workflows/build-pr.yml

@@ -1,45 +0,0 @@
-name: Build PR
-
-on: # test
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
-
-jobs:
-  build:
-    name: Build and analyze
-    runs-on: ubuntu-latest
-    
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: 21
-      - name: Cache SonarQube packages
-        uses: actions/cache@v4
-        with:
-          path: ~/.sonar/cache
-          key: ${{ runner.os }}-sonar
-          restore-keys: ${{ runner.os }}-sonar
-      - name: Cache Gradle packages
-        uses: actions/cache@v4
-        with:
-          path: ~/.gradle/caches
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
-          restore-keys: ${{ runner.os }}-gradle
-      - name: Coverage
-        env:
-          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
-        run: ./gradlew test jacocoTestReport sonar
-      - name: Build and analyze
-        env:
-          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
-        run: ./gradlew build sonar --info -Dsonar.pullrequest.branch=${{ github.event.pull_request.head.ref }} -Dsonar.pullrequest.base=${{ github.event.pull_request.base.ref }} -Dsonar.pullrequest.key=${{github.event.pull_request.number}}