Create node.js.yml for npm test CI.

It checks out the code, sets up node, builds and runs the tests.
Run tests in ChromeHeadless and do a single run.

.github/workflows/node.js.yml

@@ -0,0 +1,26 @@
+# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
+
+name: npm test CI
+
+on:
+  push:
+    branches: [ "master", "develop" ]
+  pull_request:
+    branches: [ "master", "develop" ]
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 22.x
+        cache: 'npm'
+    - run: npm ci
+    - run: npm run build --if-present
+    - run: npm test -- --browsers=ChromeHeadless --watch=false