Update GitHub Actions workflows. (#518) #206

Job	Run time
prerequisites	1m 18s
lint / lint	1m 36s
License Check / License Check	26s
generate_coverage_data	5m 47s
build_sdk (nodejs)	1m 42s
build_sdk (python)	2m 6s
build_sdk (dotnet)	2m 17s
build_sdk (go)	2m 49s
build_sdk (java)	1m 47s
test (nodejs)	2m 52s
test (python)	1m 53s
test (dotnet)	2m 6s
test (go)	2m 9s
test (java)	2m 13s
publish	10m 7s
publish_sdk	5m 35s
Tag release if labeled as needs-release	8s
	46m 51s

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