Add some more folders to gitignore (thanks @cryy22!) #744

Job	Run time
Rocky Linux MinGW	1m 9s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	52s
Rocky Linux	1m 52s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	58s
FreeBSD	1m 26s
Rocky Linux MinGW SDL3	1m 14s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	48s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	1m 12s
Debian Linux PPC	1m 48s
Rocky Linux SDL3	1m 30s
Debian Linux PPC SDL3	1m 3s
macOS (x86_64)	47s
Windows (MSVC)	1m 33s
macOS (Universal) SDL3	1m 5s
	17m 17s

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