Major CI Revamp. #824

Job	Run time
Steam Linux Runtime (SDL2)	1m 19s
Fedora Linux MinGW (SDL2)	57s
FreeBSD (SDL2)	1m 5s
iOS/tvOS (SDL3) (iOS, iphoneos, arm64)	52s
iOS/tvOS (SDL3) (iOS, iphonesimulator, x86_64;arm64)	1m 15s
Fedora Linux MinGW (SDL3)	39s
iOS/tvOS (SDL3) (tvOS, appletvos, arm64)	43s
Debian Linux PPC (SDL3)	58s
iOS/tvOS (SDL3) (tvOS, appletvsimulator, x86_64;arm64)	56s
Debian Linux PPC (SDL2)	1m 41s
Steam Linux Runtime (SDL3)	1m 17s
macOS (x86_64) (SDL2)	28s
macOS (Universal) (SDL3)	1m 4s
Windows MSVC (SDL2)	1m 31s
Windows MSVC (SDL3)	41s
	15m 26s

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