pytorch

039b62cf - Install ffmpeg=4.4.1 because torchvision doesn't compile on ffmpeg-5

Install ffmpeg=4.4.1 because torchvision doesn't compile on ffmpeg-5 TorchBench ondemand CI is broken because torchvision doesn't build on ffmpeg-5. This PR forces install ffmpeg=4.4.1 so that torchvision can build. Pull Request resolved: https://github.com/pytorch/pytorch/pull/74244 Approved by: https://github.com/malfet