Update GitHub Actions workflows. (#424) #178

Job	Run time
prerequisites	1m 29s
License Check / License Check	1m 6s
build_sdk (nodejs)	1m 11s
generate_coverage_data	1m 8s
build_sdk (python)	1m 36s
build_sdk (dotnet)	2m 57s
build_sdk (go)	2m 47s
build_sdk (java)	3m 0s
test (nodejs)	10m 14s
test (python)	1m 55s
test (dotnet)	1m 52s
test (go)	1m 37s
test (java)	1m 54s
publish	8m 38s
publish_sdk	5m 16s
Tag release if labeled as needs-release	5s
	46m 45s

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