[FAST_BUILD] No sudo when run with rootless triplet

[benz0li]

• rootless triplet: -e NB_USER=root -e NB_UID=0 -e NB_GID=0

Issue ticket if applicable

Checklist (especially for first-time contributors)

• [x] I have performed a self-review of my code
• [x] If it is a core feature, I have added thorough tests
• [x] I will try not to use force-push to make the review process easier for reviewers
• [ ] I have updated the documentation for significant changes

[benz0li]

@mathbunnyru For edge cases like

• https://github.com/b-data/jupyterlab-r-docker-stack/issues/5

which require -e JUPYTER_ALLOW_INSECURE_WRITES=true in addition.

[benz0li]

Cross reference:

• https://gitlab.b-data.ch/jupyterlab/r/docker-stack/-/commit/6cabf124bfd2e1c19b07fe541e11aa5678d38166

[mathbunnyru]

@benz0li may I ask you to write a test for this?

[benz0li]

@benz0li may I ask you to write a test for this?

Done.

[mathbunnyru]

Thanks, @benz0li 👍