ci: add test workflow

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: ✅ Test
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: 📥 Checkout ${{ github.repository }}
+        uses: actions/checkout@v4
+
+      - name: ☕ Setup Java 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'zulu'
+
+      - name: 🐘 Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: ✅ Run Tests
+        run: ./gradlew test