Update GitHub Actions workflows. (#213) #97

Job	Run time
prerequisites	2m 30s
License Check / License Check	23s
lint / lint	20s
generate_coverage_data	36s
build_sdk (nodejs)	1m 11s
build_sdk (python)	1m 9s
build_sdk (dotnet)	1m 21s
build_sdk (go)	1m 3s
build_sdk (java)	1m 4s
test (nodejs)	2m 21s
test (python)	4m 33s
test (dotnet)	1m 55s
test (go)	1m 47s
test (java)	2m 0s
publish	5m 13s
publish_sdk	2m 33s
Tag release if labeled as needs-release	2s
	30m 1s

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