Update GitHub Actions workflows. (#290) #138

Job	Run time
prerequisites	1m 44s
License Check / License Check	30s
lint / lint	22s
build_sdk (nodejs)	1m 26s
build_sdk (python)	1m 19s
generate_coverage_data	1m 34s
build_sdk (dotnet)	1m 15s
build_sdk (go)	1m 7s
build_sdk (java)	1m 13s
test (nodejs)	3m 9s
test (python)	3m 22s
test (dotnet)	2m 54s
test (go)	3m 13s
test (java)	2m 47s
publish	10m 26s
publish_sdk	3m 21s
Tag release if labeled as needs-release	4s
	39m 46s

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