multimedia/ffmpeg: Update to 9.0.1
Support for (lib)celt, (lib)glslang and (lib)shaderc is removed upstream
Remove support for (lib)lensfun as it doesn't work with the old release
we have in tree
Changelog:
https://code.ffmpeg.org/FFmpeg/FFmpeg/src/tag/n9.0.1/Changelog
PR: 297355
Exp-run by: antoine