Create gradle-pr.yml

.github/workflows/gradle-pr.yml

@@ -0,0 +1,26 @@
+name: Build & Upload
+
+on:
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
+    - name: Build with Gradle Wrapper
+      run: ./gradlew build
+    - name: Upload Artifact
+      uses: actions/upload-artifact@v4.3.1
+      with:
+        path: build/libs/*.jar