Event loop is closed

1) formgrader.spec.ts:324:1 › Load manage assignments ──────────────────────────────────────────── Error: Response has been disposed at ContentsHelper.fileExists (D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\contents.ts:94:21) at ContentsHelper.deleteFile (D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\contents.ts:242:16)

2) validate_assignment.spec.ts:136:1 › Validation failure ──────────────────────────────────────── Error: Response has been disposed at ContentsHelper.fileExists (D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\contents.ts:94:21) at ContentsHelper.uploadContent (D:\a\nbgrader\nbgrader\node_modules\@jupyterlab\galata\src\contents.ts:194:14)

Process completed with exit code 1.

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/