[bug#64732] [PATCH 1/2] gnu: Add python-ffmpeg-python.

[Parnikkapore]

Hi jgart,

There's some evidence¹ that the failing tests are a consequence of them being 
written for FFmpeg 4, not having been updated for changed behavior in FFmpeg 5+.

¹: https://github.com/kkroening/ffmpeg-python/issues/636

While we have the option of using ffmpeg-4 as the input, that doesn't seem like 
a good option. There's a PR that fixes this, but the AUR simply ignores test 
failures. I'll probably disable the 2 failing tests and cherry-pick the 
collections.Iterable commit as a patch.