Update GitHub Actions workflows. (#308) #145

Job	Run time
prerequisites	1m 1s
lint / lint	17s
License Check / License Check	42s
generate_coverage_data	4m 28s
build_sdk (nodejs)	1m 10s
build_sdk (python)	1m 9s
build_sdk (dotnet)	1m 26s
build_sdk (go)	1m 29s
build_sdk (java)	1m 41s
test (nodejs)	3m 0s
test (python)	2m 23s
test (dotnet)	2m 10s
test (go)	2m 12s
test (java)	2m 7s
publish	6m 50s
publish_sdk	4m 33s
Tag release if labeled as needs-release	3s
	36m 41s

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