Upgrade to SDL3

[Taiko2k]

Work in progress.

Will need to consider the impact this will have on packaging as SDL3 is not officially released yet.

[C0rn3j]

As a note, Dota 2 and Counter-Strike 2 have been running on SDL3 for a while, so SDL3 itself is pretty battle tested despite not having a stable release.

PySDL3 may be another story.

SDL3 defaults to Xwayland today on most setups due to libsdl-org/SDL#9383, and the necessary protocol implementations on Plasma (for example), which uses kwin, was pushed to 6.4 just last week... as a note Plasma is currently on 6.2 and new version releases aren't exactly speedy.

Xwayland isn't exactly a problem, but a thing to note.

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This will need all the requirements files(root+extra) edited to bump pysdl2 to pysdl3, pysdl2-dll commented out (asked about SDL3 plans here a-hurst/pysdl2-dll#36), and spec files for all OSs edited to comment out pysdl2-dll.

The CI yaml files will need to be edited to install SDL3 - that one is going to be fun I imagine.

With that, I believe the CI should build fine.

Or maybe we'll run into pyinstaller not supporting pysdl3, who knows, adventure awaits!

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pre-forcepush patchfile just in case - 1332.zip

Linux: No SDL3 in Ubuntu 24.04
macOS: No SDL3 in brew
Windows: No SDL3 in MINGW64 (Arch does not ship it outside of AUR either)

While CI builds, launching the image crashes on SDL3 not being found.
We have no pysdl3-dll to fall back on either.