ci: add sm_121 (GB10) CUDA arch for x86 and arm64 #142

Job	Run time
windows-latest-cuda (sm_89)	28m 31s
windows-latest-cmake-hip	2m 33s
ubuntu-arm64-cuda (sm_121)	4m 9s
ubuntu-latest-rocm (7.2.1, gfx908;gfx90a;gfx942;gfx1030;gfx1031;gfx1032;gfx1100;gfx1101;gfx1102;g...	6m 20s
ubuntu-latest-rocm (7.13.0, gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1010;gfx1011;gfx1012;gfx1030;gf...	4m 13s
ubuntu-latest-cuda (sm_89)	6m 3s
macos-arm64-cmake (macos-latest, macos-latest, -latest)	54s
windows-latest-cmake (avx2, -DGGML_NATIVE=OFF -DGGML_AVX2=ON -DSD_BUILD_SHARED_LIBS=ON)	4m 6s
ubuntu-latest-cmake	7m 17s
macos-arm64-cmake (macos-14, macos-14)	54s
windows-latest-rocm	5m 43s
release	0s
	1h 10m 43s

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