Support alternate repos for yt-dlp.

[myfirstnameispaul]

I just realized that Hypnotix is shipped with Linux Mint as of 22, and hypnotix depends on yt-dlp.

The apt package for yt-dlp has always been very far behind the yt-dlp project and the updates are important as the yt-dlp project is engaged in a cat-and-mouse game with various platforms.

Please allow different repos for hypnotix. Currently, I have to remove yt-dlp as a dependency in order to use yt-dlp on various sites, which also means I remove Hypnotix.