Tests

Bump golang.org/x/net and golang.org/x/crypto to the latest versions #4

Job	Run time
test (linux-amd64-fmt)	53s
test (linux-amd64-integration-1-cpu)	9m 56s
test (linux-amd64-integration-2-cpu)	9m 58s
test (linux-amd64-integration-4-cpu)	9m 42s
test (linux-amd64-functional)	8m 4s
test (linux-amd64-unit-4-cpu-race)	51s
test (all-build)	3m 26s
test (linux-amd64-grpcproxy)	15m 5s
test (linux-amd64-e2e)	16m 0s
test (linux-386-unit)	38s
	1h 14m 33s

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