Update setup.py - add ffmpeg-python to required modules

[jessebot]

Tries to fix #60

[what-the-diff]

PR Summary

• New Dependency Introduced
  The project setup configuration has been updated to include ffmpeg-python as a new dependency. This will ensure that the necessary additional software is installed together with our project, enabling better media handling capabilities.

[jessebot]

can also bump the version if you'd like :)

[sbrl]

@jessebot given the length of time, it may be worth taking over this PR and merging anyway :-)

[jessebot]

I am unfortunately not a maintainer or collaborator in this repo, so that's not possible :(