Add GitHub Actions workflow

Author: vieriloh

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: Java Maven CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v3
+
+    - name: Set up JDK 18
+      uses: actions/setup-java@v3
+      with:
+        java-version: '18'
+        distribution: 'temurin'
+
+    - name: Build with Maven
+      run: mvn clean install
+
+    - name: Run Tests
+      run: mvn test
+
+    - name: Generate Maven Site (Reports)
+      run: mvn site