Update SDL3 to 3.4.12

[res2k]

Latest SDL3 release

[res2k]

s390x, ppc64le fail in "install Debian packages":

  The following packages have unmet dependencies:
   liboss4-salsa-asound2 : Conflicts: libasound2
  E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

Unfortunately, I have no idea how to address this...

[res2k]

s390x, ppc64le fail in "install Debian packages":

I tried to reproduce that by failure by locally running an image that is reported in the run's "Runner Image" information: https://github.com/IBM/action-runner-image-pz/releases/tag/1.2-release

Unfortunately, I could not reproduce the conflict above.
However, I also noticed that the commands, eg sudo apt-get -y install build-essential ninja-build, behave differently in my "fresh" container, when compared to the output of the workflow run.
Which makes me wonder: is it possible there are already some packages installed in the runner image(s), and could that cause the conflict?

[res2k]

Which makes me wonder: is it possible there are already some packages installed in the runner image(s), and could that cause the conflict?

Actually, I checked that by dropping an apt list --installed into the "Sanity checks" workflow Ubuntu builds.
And yeah ... a lot of packages are installed on the runners, including those causing the conflict.

[res2k]

And yeah ... a lot of packages are installed on the runners, including those causing the conflict.

Some more workflow abuse and I found out that the temurin-* packages seem to be the offenders, as they have liboss4-salsa-asound2 as a dependency.