FFmpeg mod fails to verify (but installs regardless)

Probably a zip extraction issue, when handling executables. Resulting ffmpeg.exe ends up on disk with only execute permissions, Beataroni isn't able to open when calculating md5 sum.

Logs an error but it's non-fatal, low impact.

Haven't tested the actual mod, installing executables / native libraries and running under proton /should/ work, but permissions may mess it up.