Update GitHub Actions workflows. (#228) #103

Job	Run time
prerequisites	1m 44s
lint / lint	34s
License Check / License Check	30s
build_sdk (nodejs)	1m 19s
build_sdk (python)	1m 2s
generate_coverage_data	1m 40s
build_sdk (dotnet)	1m 1s
build_sdk (go)	1m 21s
build_sdk (java)	1m 0s
test (nodejs)	3m 32s
test (python)	3m 22s
test (dotnet)	2m 39s
test (go)	3m 45s
test (java)	2m 40s
publish	6m 19s
publish_sdk	2m 22s
Tag release if labeled as needs-release	3s
	34m 53s

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