Test jupyter lab without nodeJS

[fcollonval]

References

Fixes #7462

Code changes

User-facing changes

Backwards-incompatible changes

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[fcollonval]

@jasongrout and @blink1073 Here is a proposal to test installing and running JupyterLab without NodeJS.

I added a group nonode in the Linux matrix. For that group, the JupyterLab wheel is build in ci_install.sh. Then node is removed. And in ci_script.sh, JupyterLab is installed from that wheel and executed. Should we have additional actions?

Note: jupyterlab.browser_check is unfortunately not possible as node is removed.

[blink1073]

I think this is about as good as we can get without a browser check, other than checking for error logs that don't actually stop the application. Thanks!

[blink1073]

Perfect, thank you!