Add build & test workflow on commit

Author: ggivo

.github/workflows/integration.yaml

@@ -0,0 +1,26 @@
+name: Build and Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'maven'  # Caches dependencies to speed up builds
+      - name: Check code formatting
+        run: mvn formatter:validate
+      - name: Build and verify
+        run: mvn -B clean verify