Temporarily skip TestAuthZPluginAllowEventStream

Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>

integration-cli/docker_cli_authz_unix_test.go

@@ -229,6 +229,8 @@ func (s *DockerAuthzSuite) TestAuthZPluginDenyResponse(c *check.C) {
 
 // TestAuthZPluginAllowEventStream verifies event stream propagates correctly after request pass through by the authorization plugin
 func (s *DockerAuthzSuite) TestAuthZPluginAllowEventStream(c *check.C) {
+	c.Skip("Flaky test")
+
 	testRequires(c, DaemonIsLinux)
 
 	// start the daemon and load busybox to avoid pulling busybox from Docker Hub