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Add aarch64 to build workflow #130

Job	Run time
build_and_test (x86, non-SIMD)	9s
build_and_test (x86, SSE2)	11s
build_and_test (x86, AVX2)	9s
build_and_test (x86, NEON)	10s
build_and_test (x86, auto-selected)	10m 22s
build_and_test (x86_64, non-SIMD)	5m 41s
build_and_test (x86_64, SSE2)	1m 56s
build_and_test (x86_64, AVX2)	1m 13s
build_and_test (x86_64, NEON)	10s
build_and_test (x86_64, auto-selected)	1m 12s
build_and_test (aarch64, non-SIMD)	5m 28s
build_and_test (aarch64, SSE2)	9s
build_and_test (aarch64, AVX2)	9s
build_and_test (aarch64, NEON)	5m 28s
build_and_test (aarch64, auto-selected)	5m 26s
	37m 53s

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