chore(ci): Add build actions

.github/workflows/build-test.yaml

@@ -0,0 +1,49 @@
+name: Build and test
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "src/**"
+      - "*.xml"
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 17
+          cache: "maven"
+      - name: Build
+        run: mvn -B clean package --file pom.xml
+      - name: Integration test
+        run: mvn -B failsafe:integration-test failsafe:verify --file pom.xml
+  compatibility:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        keycloak_version: [22.0.5, 23.0.0, 23.0.1, latest]
+        keycloak_dist: [quarkus]
+        experimental: [false]
+        include:
+          - keycloak_version: nightly
+            keycloak_dist: quarkus
+            experimental: true
+    continue-on-error: ${{ matrix.experimental }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 17
+          cache: "maven"
+      - name: Compatibility tests
+        run: mvn -B -U clean test-compile failsafe:integration-test failsafe:verify --file pom.xml -Dkeycloak.version=${{ matrix.keycloak_version }} -Dkeycloak.dist=${{ matrix.keycloak_dist }}