feat(tests): add GitHub Actions workflow for running tests

Author: Theo-lbg

.github/workflows/tests.yaml

@@ -0,0 +1,36 @@
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+name: Tests
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 25
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: 25
+          overwrite-settings: false
+
+      - name: Cache Maven packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-maven
+
+      - name: Prepare test properties
+        run: |
+          mkdir -p src/test/resources
+          echo ${{ secrets.APPLICATION_TEST_PROPERTIES }} | base64 -d > src/test/resources/application-test.properties
+          echo "spring.sql.init.mode=never" >> src/test/resources/application-test.properties
+
+      - name: Run unit and integration tests
+        run: ./mvnw clean verify