Split out check-and-unit-test into separate workflow

.github/workflows/ci-check-and-unit-test.yml

@@ -0,0 +1,30 @@
+name: CI-check-and-unit-test
+
+on:
+  push:
+
+permissions:
+  contents: read
+
+jobs:
+  check-format-and-unit-test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 20
+        cache: npm
+        cache-dependency-path: sources/package-lock.json
+
+    - name: Check formatting and compile
+      run: |
+        npm install
+        npm run check
+        npm run compile
+      working-directory: sources
+    - name: Run unit tests
+      run: |
+        npm test
+      working-directory: sources