Update GitHub Actions workflows. (#644) #278

Job	Run time
License Check / License Check	26s
prerequisites / prerequisites	1m 12s
generate_coverage_data	3m 39s
build_sdk / build_sdk (nodejs)	56s
build_sdk / build_sdk (python)	1m 4s
build_sdk / build_sdk (dotnet)	1m 19s
build_sdk / build_sdk (go)	1m 55s
build_sdk / build_sdk (java)	1m 41s
test (nodejs)	8m 59s
test (python)	1m 46s
test (dotnet)	2m 6s
test (go)	2m 6s
test (java)	1m 41s
publish	10m 6s
publish_sdk	3m 29s
Tag release if labeled as needs-release	3s
	42m 28s

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