WEB-12: Add CI pipeline

.github/workflows/jestci.yml

@@ -0,0 +1,30 @@
+name: Jest CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          cache-dependency-path: ./yarn.lock
+          node-version: ${{ matrix.node-version }}
+          cache: "yarn"
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Run Jest tests
+        run: yarn test