Update GitHub Actions workflows. (#548) #218

Job	Run time
prerequisites	1m 57s
License Check / License Check	35s
generate_coverage_data	4m 28s
build_sdk (nodejs)	1m 37s
build_sdk (python)	1m 37s
build_sdk (dotnet)	2m 1s
build_sdk (go)	3m 19s
build_sdk (java)	2m 30s
test (nodejs)	4m 20s
test (python)	3m 5s
test (dotnet)	3m 2s
test (go)	3m 2s
test (java)	4m 41s
publish	10m 20s
publish_sdk	4m 37s
Tag release if labeled as needs-release	2s
	51m 13s

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