Update GitHub Actions workflows. (#390) #150

Job	Run time
prerequisites	2m 15s
lint / lint	31s
License Check / License Check	26s
build_sdk (nodejs)	1m 17s
generate_coverage_data	2m 7s
build_sdk (python)	1m 38s
build_sdk (dotnet)	1m 23s
build_sdk (go)	1m 24s
build_sdk (java)	1m 32s
test (nodejs)	2m 48s
test (python)	1m 53s
test (dotnet)	1m 45s
test (go)	2m 14s
test (java)	2m 12s
publish	7m 57s
publish_sdk	4m 9s
Tag release if labeled as needs-release	3s
	35m 34s

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