Update GitHub Actions workflows. (#425) #157

Job	Run time
prerequisites	2m 7s
lint / lint	4m 31s
License Check / License Check	31s
build_sdk (nodejs)	1m 8s
build_sdk (python)	1m 25s
build_sdk (dotnet)	1m 2s
generate_coverage_data	1m 46s
build_sdk (go)	1m 37s
build_sdk (java)	1m 18s
test (nodejs)	1m 46s
test (python)	2m 8s
test (dotnet)	1m 52s
test (go)	1m 57s
test (java)	2m 8s
publish	8m 19s
publish_sdk	5m 47s
Tag release if labeled as needs-release	2s
	39m 24s

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