Update GitHub Actions workflows. (#319) #129

Job	Run time
prerequisites	2m 17s
lint / lint	2m 26s
License Check / License Check	20s
build_sdk (nodejs)	1m 6s
generate_coverage_data	1m 46s
build_sdk (python)	1m 9s
build_sdk (dotnet)	1m 6s
build_sdk (go)	1m 29s
build_sdk (java)	1m 29s
test (nodejs)	12m 22s
test (python)	1m 39s
test (dotnet)	1m 39s
test (go)	1m 52s
test (java)	1m 37s
publish	6m 47s
publish_sdk	3m 41s
Tag release if labeled as needs-release	2s
	42m 47s

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