Update GitHub Actions workflows. (#405) #144

Job	Run time
prerequisites	2m 14s
lint / lint	39s
License Check / License Check	28s
generate_coverage_data	1m 45s
build_sdk (nodejs)	1m 23s
build_sdk (python)	1m 10s
build_sdk (dotnet)	56s
build_sdk (go)	1m 36s
build_sdk (java)	1m 31s
test (nodejs)	1m 57s
test (python)	2m 3s
test (dotnet)	1m 44s
test (go)	1m 55s
test (java)	1m 43s
publish	6m 27s
publish_sdk	3m 5s
Tag release if labeled as needs-release	2s
	30m 38s

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