Extract reusable GHA workflows

.github/workflows/pr-build.yml

@@ -2,36 +2,9 @@ name: Pull Request Build
 
 on:
   pull_request:
-    branches: [ main ]
+    branches:
+      - main
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-
-      - uses: actions/checkout@v3
-
-      - name: Set up JDK
-        uses: actions/setup-java@v3
-        with:
-          distribution: adopt
-          java-version: 17
-          cache: gradle
-
-      - name: Run Gradle
-        uses: burrunan/gradle-cache-action@v1
-        with:
-          debug: false
-          concurrent: true
-          gradle-build-scan-report: false
-          arguments: check
-
-      - name: Capture Test Results
-        if: failure()
-        uses: actions/upload-artifact@v3
-        with:
-          name: test-results
-          path: '*/build/reports/tests/**/*.*'
-          retention-days: 3
+    uses: .github/workflows/spring-gradle-pull-request-build.yml