ci: Enforce unit tests on every pull request (#784)

* ci: add unit testing on pull request

* ci: add test job

.github/workflows/testing.yml

@@ -0,0 +1,25 @@
+name: Run Unit Tests
+
+on:
+  pull_request:
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
+
+    - name: Unit Test with Gradle Wrapper
+      run: ./gradlew test