Add warning for problematic libraries

[muellerzr]

What does this PR do?

Since this is a very common issue, adds a check in notebook_launcher for specific libraries that are known to cause issues (such as starting CUDA forks on import).

Fixes #2148

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline,
  Pull Request section?
• Was this discussed/approved via a Github issue or the forum? Please add a link
  to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the
  documentation guidelines, and
  here are tips on formatting docstrings.
• Did you write any new necessary tests?

Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
members/contributors who may be interested in your PR.

@BenjaminBossan @SunMarc

[muellerzr]

Essentially the notebook_launcher doesn't like using async subprocesses when doing things, so executing it fully as a non-async subprocess makes this fully work reliably.

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[BenjaminBossan]

Good idea to make this an explicit error, given how many users stumble upon this. I only have some smaller comments.

[BenjaminBossan]

Thanks for addressing the points I raised. I only have a small comment about a type annotation, feel free to merge.