CI: mkosi-mainline failing with "mkosi: error: argument -r/--release: expected one argument"

[solardiz]

@vt-alt This is as seen in https://github.com/lkrg-org/lkrg/actions/runs/12220970020/job/34092754731

Run sudo mkosi -r  --cache=mkosi.cache --prepare-script=.github/workflows/dpkg-i.sh
mkosi: error: argument -r/--release: expected one argument
Error: Process completed with exit code 2.

[vt-alt]

I would stop this workflow as it's falling apart more and more, IMHO it's not worth fixing. Ubuntu does not provide mainline kernel this way anymore.

[solardiz]

@vt-alt OK, let's stop it, and let's separately look for alternatives perhaps based on another distro as you suggested. Thank you!