Add CI workflow to build and run tests

.github/workflows/java-ci.yml

@@ -0,0 +1,27 @@
+name: Java CI
+
+on:
+  push:
+    branches: [ develop, main ]
+  pull_request:
+    branches: [ develop, main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Build with Maven
+        run: mvn clean install
+
+      - name: Run Tests
+        run: mvn test