update checkout and setup-node GH actions to v4

Author: fturmel

.github/workflows/node.js.yml

@@ -1,6 +1,6 @@
 # This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests
 
-name: Content tests
+name: Content and unit tests
 
 on:
   push:
@@ -13,11 +13,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: '20.x'
           cache: 'npm'
+
       - run: npm ci
       - run: npm test