Update GitHub Actions workflows. (#431) #159

Job	Run time
prerequisites	2m 28s
lint / lint	22s
License Check / License Check	32s
build_sdk (nodejs)	1m 26s
build_sdk (python)	1m 19s
generate_coverage_data	1m 54s
build_sdk (dotnet)	1m 13s
build_sdk (go)	1m 13s
build_sdk (java)	1m 22s
test (nodejs)	2m 13s
test (python)	1m 39s
test (dotnet)	1m 49s
test (go)	1m 40s
test (java)	1m 53s
publish	10m 5s
publish_sdk	5m 5s
Tag release if labeled as needs-release	2s
	36m 15s

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