feat(hpc/simd_caps): add AMX/AVX512BF16/AVXVNNIINT8 fields (round-2 fleet) #272

Job	Run time
nostd/thumbv6m-none-eabi/stable	33s
native-backend/stable	7m 55s
format/nightly	30s
Pass MSRV values to other jobs	2s
clippy/1.94.1	33s
cross_test/${{ matrix.target }}/${{ matrix.rust }}	0s
docs/nightly	-1s
miri	-1s
cargo-careful	-1s
tests/1.94.0	10m 30s
blas-msrv	1m 4s
tests/beta	11m 58s
tests/stable	11m 30s
conclusion	0s
	44m 32s

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