Update GitHub Actions workflows. (#470) #190

Job	Run time
prerequisites	1m 8s
lint / lint	1m 55s
License Check / License Check	16s
build_sdk (nodejs)	1m 26s
generate_coverage_data	5m 17s
build_sdk (python)	1m 19s
build_sdk (dotnet)	1m 31s
build_sdk (go)	1m 42s
build_sdk (java)	1m 59s
test (nodejs)	1m 50s
test (python)	2m 7s
test (dotnet)	1m 55s
test (go)	1m 48s
test (java)	2m 9s
publish	7m 14s
publish_sdk	3m 10s
Tag release if labeled as needs-release	3s
	36m 49s

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