Handle errors in WaitAndAcquireGPUSwapchainTexture #777

Job	Run time
FreeBSD	1m 21s
Rocky Linux	1m 45s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	40s
Rocky Linux MinGW	1m 6s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	58s
Rocky Linux MinGW SDL3	2h 48m 4s
Debian Linux PPC	1m 46s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	38s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	45s
Debian Linux PPC SDL3	58s
Rocky Linux SDL3	1m 16s
macOS (x86_64)	32s
macOS (Universal) SDL3	56s
Windows (MSVC)	55s
	3h 1m 40s

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