GPU: Enable Metal validation in debug mode #3122

Job	Run time
Create test plan	4s
level1 / Haiku	2m 1s
level2 / Windows (MSVC, ARM)	3m 38s
level2 / Android (CMake, lean)	3m 16s
level2 / Windows (msys2, mingw32)	2m 17s
level2 / Windows (MSVC, clang-cl x64)	3m 26s
level2 / PowerPC	1m 59s
level2 / Android (CMake)	2m 56s
level2 / RISC OS	1m 28s
level2 / Sony PlayStation Vita (GLES w/ pib)	3m 15s
level2 / MacOS (Framework) (x64)	4m 51s
level2 / Sony PlayStation 2	5m 2s
level2 / LoongArch64	2m 50s
level2 / Android (Gradle)	2m 26s
level2 / Ubuntu 20.04	4m 6s
level2 / Sony PlayStation Portable	4m 1s
level2 / Android (Android.mk)	1m 19s
level2 / MacOS (Framework) (arm64)	2m 19s
level2 / Windows (msys2, clang32)	3m 5s
level2 / Ubuntu 20.04 (Intel oneAPI)	4m 28s
level2 / iOS (CMake & xcode)	1m 55s
level2 / PowerPC64	1m 57s
level2 / Windows (MSVC, x64)	3m 14s
level2 / Ubuntu 20.04 (Intel Compiler)	4m 28s
level2 / Nintendo 3DS	2m 1s
level2 / MacOS (GNU prefix)	3m 7s
level2 / Steam Linux Runtime (Sniper)	2m 59s
level2 / Windows (MSVC, ARM64)	3m 35s
level2 / GDK (MSVC, x64)	3m 1s
level2 / tvOS (CMake & xcode)	1m 58s
level2 / Sony PlayStation Vita (GLES w/ PVR_PSP2)	3m 22s
level2 / NetBSD	2m 39s
level2 / FreeBSD	2m 46s
level2 / Windows (MSVC, clang-cl x86)	3m 31s
level2 / Windows (msys2, ucrt64)	1m 45s
level2 / Windows (msys2, clang64)	2m 58s
level2 / Windows (msys2, mingw64)	2m 21s
level2 / Ubuntu 22.04	4m 3s
level2 / Emscripten	6m 35s
level2 / Windows (MSVC, x86)	3m 20s
	2h 0m 22s

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