CI: Fix fteqcc failure due to outdated glibc version in github runners

[pnahratow]

Description of Changes

fteqcc nees glibc version 2.38 at minimum. This might be a recent update who knows. However the Ubuntu-latest tag seems to also pick runners using Ubuntu 22.04 which is too old and doesn't satisfy the libc dependency. I set this manually to 24.04 but this should be reverted at some point. Actually it should work right now. This feels like a GitHub bug. They have 24.04 runners available but latest points to something older.

Checklist

---

• I have read the LibreQuake contribution guidelines
• I have thoroughly tested my changes to the best of my ability
• I confirm I have not contributed anything that would impact LibreQuake's licensing and usage
• This Pull Request fixes a critical issue that should be reviewed and merged as soon as possible

[lavenderdotpet]

looks good to me will make an issue about reverting this once this is fixed on github's side

[lavenderdotpet]

oh! just noticed an issue
this should be labled as CI and not BUILD

BUILD: Modification of our build scripts and/or tools.
CI: Modification of the GitHub Actions Pipeline(s).

other then that it looks fine and needs to be merged asap