Add a Java CI github workflow

.github/workflows/workflow.yml

@@ -0,0 +1,24 @@
+# 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.
+
+name: Java CI
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v4
+    - name: Setup Java
+      uses: actions/setup-java@v4
+      with:
+        distribution: 'temurin'
+        java-version: 17
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v4
+    - name: Build with Gradle
+      run: ./gradlew build