Adds CI GH workflows for tests

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: Run Tests
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "21.6.2"
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run Karma tests
+        run: ng test --no-watch --no-progress --browsers=ChromeHeadless