GHA CI: show installed version

Before this change, it wasn't clear which exact version were installed.

PR #22155.

.github/workflows/ci_webui.yaml

@@ -28,7 +28,10 @@ jobs:
           node-version: 'lts/*'
 
       - name: Install tools
-        run: npm install
+        run: |
+          npm install
+          npm ls
+          npm ls --all
 
       - name: Lint code
         run: npm run lint