Added CI for pull requests, too.

.github/workflows/pull_request.yml

@@ -1,19 +1,39 @@
-name: Build Pull Request
-on: pull_request
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle
+
+name: Java CI with Gradle
+
+on: [pull_request]
 
 jobs:
   build:
+
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v2
-        with:
-          java-version: 17
-          distribution: adopt
-      - name: Build
-        run: ./gradlew build
-      - name: Upload artifacts
-        uses: actions/[email protected]
-        with:
-          name: build-artifacts
-          path: build/libs
+    - uses: actions/checkout@v4
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+
+    # Configure Gradle for optimal use in GiHub Actions, including caching of downloaded dependencies.
+    # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
+
+    - name: Build with Gradle Wrapper
+      run: ./gradlew build
+
+    - name: Upload PR Artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: pull-request-build
+        path: build/libs/