Update GitHub Actions workflows. (#535) #235

Job	Run time
prerequisites	2m 18s
License Check / License Check	28s
build_sdk (nodejs)	1m 21s
generate_coverage_data	1s
build_sdk (python)	1m 30s
build_sdk (dotnet)	1m 39s
build_sdk (go)	1m 36s
build_sdk (java)	1m 29s
test (nodejs)	10m 3s
test (python)	1m 42s
test (dotnet)	2m 4s
test (go)	1m 53s
test (java)	1m 55s
publish	1s
publish_sdk	0s
Tag release if labeled as needs-release	0s
	28m 0s

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