FFmpeg v5 PPA fails to install on Ubuntu Focal

[ptr727]

FFmpeg 5 PPA no longer installs on Ubuntu.

Error in GitHub Actions pipeline:
https://github.com/ptr727/PlexCleaner/runs/5531596900?check_suite_focus=true

Error in docker build:

#8 62.22 Some packages could not be installed. This may mean that you have
#8 62.22 requested an impossible situation or if you are using the unstable
#8 62.22 distribution that some required packages have not yet been created
#8 62.22 or been moved out of Incoming.
#8 62.22 The following information may help to resolve the situation:
#8 62.22
#8 62.22 The following packages have unmet dependencies:
#8 62.30 ffmpeg : Depends: libavcodec59 (= 7:5.0-2ubuntu0~20.04.sav1)
#8 62.30 Depends: libavdevice59 (= 7:5.0-2ubuntu0~20.04.sav1) but it is not going to be installed
#8 62.30 Depends: libavfilter8 (= 7:5.0-2ubuntu0~20.04.sav1)
#8 62.30 Depends: libavformat59 (= 7:5.0-2ubuntu0~20.04.sav1)
#8 62.31 E: Unable to correct problems, you have held broken packages.

PPA bug report:
https://bugs.launchpad.net/savos/+bug/1965181

[ptr727]

Fixed upstream.