Fix the update snapshot workflow (#84)

* Comment the snapshot update on jupyterlab-ws-chat

* Install only the collaborative extension

Author: brichet

.github/workflows/update-integration-tests.yml

@@ -72,14 +72,7 @@ jobs:
         run: python -m pip install -U "jupyterlab>=4.0.0,<5"
 
       - name: Install extension
-        run: ./scripts/install.sh
-
-      - uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          # Playwright knows how to start JupyterLab server
-          start_server_script: 'null'
-          test_folder: python/jupyterlab-ws-chat/ui-tests
+        run: ./scripts/install.sh collaborative
 
       - uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
         with: