Update GitHub Actions workflows. (#234) #106

Job	Run time
prerequisites	1m 25s
lint / lint	2m 20s
License Check / License Check	23s
build_sdk (nodejs)	1m 3s
generate_coverage_data	1m 4s
build_sdk (python)	1m 2s
build_sdk (dotnet)	1m 23s
build_sdk (go)	1m 4s
build_sdk (java)	1m 10s
test (nodejs)	2m 2s
test (python)	1m 53s
test (dotnet)	1m 20s
test (go)	1m 27s
test (java)	1m 40s
publish	6m 2s
publish_sdk	13m 23s
Tag release if labeled as needs-release	4s
	38m 45s

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