update dependencies (#6267)

Signed-off-by: hongming <coder.scala@gmail.com>
(cherry picked from commit cfebd96a1f)

vendor/k8s.io/apimachinery/pkg/util/portforward/constants.go

@@ -0,0 +1,24 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package portforward
+
+const (
+	PortForwardV1Name                    = "portforward.k8s.io"
+	WebsocketsSPDYTunnelingPrefix        = "SPDY/3.1+"
+	KubernetesSuffix                     = ".k8s.io"
+	WebsocketsSPDYTunnelingPortForwardV1 = WebsocketsSPDYTunnelingPrefix + PortForwardV1Name
+)