GitLab

Summary:
The nightly builds support FFmpeg version 4, 5 and 6.

Pull Request resolved: https://github.com/pytorch/audio/pull/3480

Differential Revision: D47482841

Pulled By: mthrok

fbshipit-source-id: 88267f5e83ddc7b1e866b35e57a87b985e2c78c9