Update GitHub Actions workflows. (#326) #123

Job	Run time
prerequisites	1m 27s
License Check / License Check	38s
lint / lint	3m 20s
build_sdk (nodejs)	1m 36s
build_sdk (python)	1m 26s
generate_coverage_data	1m 3s
build_sdk (dotnet)	1m 42s
build_sdk (go)	1m 7s
build_sdk (java)	1m 35s
test (nodejs)	2m 29s
test (python)	1m 36s
test (dotnet)	1m 22s
test (go)	2m 25s
test (java)	1m 2s
publish	8m 21s
publish_sdk	2m 54s
Tag release if labeled as needs-release	4s
	34m 7s

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