Bumping golang version to 1.21 in modules #420

Job	Run time
build_and_test (tls, linux, amd64)	42s
build_and_test (tls, linux, arm64)	55s
build_and_test (tls, darwin, amd64)	52s
build_and_test (tls, darwin, arm64)	57s
build_and_test (tls, windows, amd64)	3s
build_and_test (tls, windows, arm64)	3s
build_and_test (admin, linux, amd64)	41s
build_and_test (admin, linux, arm64)	49s
build_and_test (admin, darwin, amd64)	56s
build_and_test (admin, darwin, arm64)	49s
build_and_test (admin, windows, amd64)	3s
build_and_test (admin, windows, arm64)	2s
build_and_test (api, linux, amd64)	43s
build_and_test (api, linux, arm64)	51s
build_and_test (api, darwin, amd64)	49s
build_and_test (api, darwin, arm64)	48s
build_and_test (api, windows, amd64)	2s
build_and_test (api, windows, arm64)	2s
build_and_test (cli, linux, amd64)	37s
build_and_test (cli, linux, arm64)	48s
build_and_test (cli, darwin, amd64)	49s
build_and_test (cli, darwin, arm64)	45s
build_and_test (cli, windows, amd64)	46s
build_and_test (cli, windows, arm64)	46s
	14m 38s

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