Fix testings accross the project

Signed-off-by: Pengfei Ni <feiskyer@gmail.com>

plugins/test/noop/noop_test.go

@@ -130,6 +130,7 @@ var _ = Describe("No-op plugin", func() {
 		Expect(err).NotTo(HaveOccurred())
 		Eventually(session).Should(gexec.Exit(0))
 		Expect(session.Out.Contents()).To(MatchJSON(`{
+  "cniVersion": "0.3.1",
 	"ips": [{"version": "4", "address": "10.1.2.3/24"}],
 	"dns": {"nameservers": ["1.2.3.4"]}
 }`))