New review comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/29744#discussion_r606699572

Comment:
This doesn't seem strictly necessary from what I'm looking:

https://github.com/kovidgoyal/calibre/blob/5d126692f8c35a9a246795ea4757757f01b1e35f/src/calibre/ebooks/chardet.py#L126

It just defaults to a configured encoding if the module can't be imported. But since you already made the new package, I think it's fine to add directly as a dependency, no need to install only for checks.