added a github workflow to run the unit tests on pull requests and pu…

…shes to `main`

.github/workflows/main.yml

@@ -0,0 +1,21 @@
+name: Run Tests
+
+on:
+  push:
+    branches: [ main ]
+
+  pull_request:
+    branches: [ main ]
+
+  workflow_dispatch:
+
+jobs:
+  Run-Tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v4
+
+      - name: Run the tests
+        run: ./gradlew test