Install SDL3 on Fedora again; uninstall non-compat SDL2 from Rocky and Red Hat 10.x

[stephengtuggy]

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Please answer the following:

Code Changes:

• CI Change

Issues:

• Relates to Upgrade to SDL3 Vega-Strike-Engine-Source#1369

Purpose:

• What is this pull request trying to do? Add back SDL3 and SDL3_image to the list of packages to install on Fedora 42 and 43, which somehow got lost in the shuffle sometime in the last few weeks. Also add back the logic that uninstalls non-SDL3-based (non-"compat") SDL2 from Rocky Linux 10.0 and 10.1. Add the same logic for Red Hat, and for Fedora as well.
• What release is this for? 0.10.x, primarily
• Is there a project or milestone we should apply this to? 0.10.x?

[BenjamenMeyer]

We still need need SDL2 on the base images for 0.9.x builds.

[stephengtuggy]

We still need need SDL2 on the base images for 0.9.x builds.

For that, we'll use SDL2-compat instead, which is a compatibility layer built on top of SDL3. At least, that's what we'll use on RPM-based distros.

[BenjamenMeyer]

We still need need SDL2 on the base images for 0.9.x builds.

For that, we'll use SDL2-compat instead, which is a compatibility layer built on top of SDL3. At least, that's what we'll use on RPM-based distros.

Fair enough. Let's move forward with this then