Update GitHub Actions workflows. (#968) #240

Job	Run time
prerequisites	1m 5s
lint / lint	2m 4s
License Check / License Check	13s
generate_coverage_data	4m 56s
build_sdk (nodejs)	1m 46s
build_sdk (python)	1m 14s
build_sdk (dotnet)	1m 34s
build_sdk (go)	1m 30s
build_sdk (java)	1m 12s
test (nodejs)	2m 31s
test (python)	2m 5s
test (dotnet)	2m 11s
test (go)	2m 3s
test (java)	2m 50s
publish	7m 56s
publish_sdk	42s
Tag release if labeled as needs-release	0s
	35m 52s

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