UI Tests

Update to JupyterLab `4.3.0a1` #2066

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
Build	4m 46s
Build	4m 46s
ui-tests (firefox)	3m 44s
ui-tests (firefox)	3m 44s
ui-tests (chromium)	5m 14s
ui-tests (chromium)	3m 24s
	25m 38s