Add support for arm64 docker builds #54

Job	Run time
build_and_test (tls, linux, amd64)	50s
build_and_test (tls, linux, arm64)	47s
build_and_test (tls, darwin, amd64)	26s
build_and_test (tls, darwin, arm64)	41s
build_and_test (tls, windows, amd64)	4s
build_and_test (tls, windows, arm64)	2s
build_and_test (admin, linux, amd64)	44s
build_and_test (admin, linux, arm64)	43s
build_and_test (admin, darwin, amd64)	22s
build_and_test (admin, darwin, arm64)	44s
build_and_test (admin, windows, amd64)	3s
build_and_test (admin, windows, arm64)	3s
build_and_test (api, linux, amd64)	40s
build_and_test (api, linux, arm64)	38s
build_and_test (api, darwin, amd64)	17s
build_and_test (api, darwin, arm64)	46s
build_and_test (api, windows, amd64)	2s
build_and_test (api, windows, arm64)	3s
build_and_test (cli, linux, amd64)	39s
build_and_test (cli, linux, arm64)	40s
build_and_test (cli, darwin, amd64)	25s
build_and_test (cli, darwin, arm64)	37s
build_and_test (cli, windows, amd64)	37s
build_and_test (cli, windows, arm64)	43s
	11m 36s

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