New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/issues/42775#issuecomment-1468856055

Comment:
It seems we already ship a vendored in mathjax 2.7.9 in `python3-nbclassic` and, moreover, updating `python3-jupyter_notebook` to 6.5.3 will use mathjax from this package.

I will work on this and make a PR to update jupyter notebook et al to current versions.