ci: add test stage to CI

.github/workflows/test.yml

@@ -0,0 +1,33 @@
+name: Test and build
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/[email protected]
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      - name: Check Yarn Version
+        run: yarn --version
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Run tests
+        run: yarn test
+
+      - name: Build
+        run: |
+          yarn build