Tests

release: use GitHub's gh to create GitHub release #1023

Job	Run time
test (linux-amd64-fmt)	55s
test (linux-amd64-integration-1-cpu)	9m 47s
test (linux-amd64-integration-2-cpu)	9m 41s
test (linux-amd64-integration-4-cpu)	9m 59s
test (linux-amd64-functional)	8m 29s
test (linux-amd64-unit-4-cpu-race)	54s
test (all-build)	3m 29s
test (linux-amd64-grpcproxy)	15m 25s
test (linux-amd64-e2e)	14m 6s
test (linux-386-unit)	40s
	1h 13m 25s

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