Visual Regression Documentation tests action uses Node.js 16, which is deprecated

[JasonWeill]

Description

In the run details for visual regression tests, I see an error:

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-python@v4, actions/cache@v3, actions/setup-node@v3, ifaxity/wait-on-action@v1, actions/upload-artifact@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Expected behavior

We need to upgrade these actions to Node 20, which is still supported until late 2024, with maintenance continuing until Q2 2026. NodeJS ended support on September 11, 2023.

[krassowski]

Rhe above is referring to 4.0.x branch; on main there is only one of these (ifaxity/wait-on-action@v1):

The following actions uses node12 which is deprecated and will be forced to run on node16: ifaxity/wait-on-action@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Of note there might be even older versions on 3.6.x branch.

[krassowski]

Depends on iFaxity/wait-on-action#12

[krassowski]

A few remain:

actions/setup-python@v4, actions/cache@v3, actions/setup-node@v3

but these are not defined in https://github.com/jupyterlab/jupyterlab/blob/main/.github/workflows/galata.yml but from dependencies too.

[krassowski]

Will be fixed by jupyterlab/maintainer-tools#235