Event loop is closed

1) assignment_list.spec.ts:234:1 › Open assignment list tab from menu ──────────────────────────── Test timeout of 60000ms exceeded.

1) assignment_list.spec.ts:234:1 › Open assignment list tab from menu ──────────────────────────── Error: page.evaluate: Target closed at D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\jupyterlabpage.ts:715:17 at Timeout.check (D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\utils.ts:166:33)

1) assignment_list.spec.ts:234:1 › Open assignment list tab from menu ──────────────────────────── Pending operations: - page.evaluate at node_modules\@jupyterlab\galata\src\jupyterlabpage.ts:715:17 - apiRequestContext.fetch at node_modules\@jupyterlab\galata\src\contents.ts:473:25 - apiRequestContext.fetch at node_modules\@jupyterlab\galata\src\contents.ts:473:25

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/setup-python@v2, actions/upload-artifact@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/