Update GitHub Actions workflows. (#615) #196

Job	Run time
prerequisites	2m 5s
License Check / License Check	23s
lint / lint	28s
generate_coverage_data	1m 45s
build_sdk (nodejs)	1m 30s
build_sdk (python)	1m 12s
build_sdk (dotnet)	1m 19s
build_sdk (go)	1m 12s
build_sdk (java)	1m 37s
test (nodejs)	7m 4s
test (python)	2m 17s
test (dotnet)	2m 32s
test (go)	2m 8s
test (java)	1m 30s
publish	5m 54s
publish_sdk	3m 56s
Tag release if labeled as needs-release	4s
	36m 56s

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