Update GitHub Actions workflows. (#508) #202

Job	Run time
prerequisites	1m 3s
lint / lint	1m 33s
License Check / License Check	22s
generate_coverage_data	6m 7s
build_sdk (nodejs)	1m 30s
build_sdk (python)	1m 52s
build_sdk (dotnet)	1m 37s
build_sdk (go)	2m 2s
build_sdk (java)	1m 39s
test (nodejs)	2m 51s
test (python)	1m 47s
test (dotnet)	1m 51s
test (go)	1m 56s
test (java)	2m 9s
publish	12m 4s
publish_sdk	7m 56s
Tag release if labeled as needs-release	4s
	48m 23s

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