Upgrade k8s package verison (#5358)

* upgrade k8s package version

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

* Script upgrade and code formatting.

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

vendor/k8s.io/apiserver/pkg/util/webhook/metrics.go

@@ -0,0 +1,52 @@
+/*
+Copyright 2020 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 webhook
+
+import (
+	"k8s.io/component-base/metrics"
+	"k8s.io/component-base/metrics/legacyregistry"
+)
+
+var x509MissingSANCounter = metrics.NewCounter(
+	&metrics.CounterOpts{
+		Subsystem: "webhooks",
+		Namespace: "apiserver",
+		Name:      "x509_missing_san_total",
+		Help: "Counts the number of requests to servers missing SAN extension " +
+			"in their serving certificate OR the number of connection failures " +
+			"due to the lack of x509 certificate SAN extension missing " +
+			"(either/or, based on the runtime environment)",
+		StabilityLevel: metrics.ALPHA,
+	},
+)
+
+var x509InsecureSHA1Counter = metrics.NewCounter(
+	&metrics.CounterOpts{
+		Subsystem: "webhooks",
+		Namespace: "apiserver",
+		Name:      "x509_insecure_sha1_total",
+		Help: "Counts the number of requests to servers with insecure SHA1 signatures " +
+			"in their serving certificate OR the number of connection failures " +
+			"due to the insecure SHA1 signatures (either/or, based on the runtime environment)",
+		StabilityLevel: metrics.ALPHA,
+	},
+)
+
+func init() {
+	legacyregistry.MustRegister(x509MissingSANCounter)
+	legacyregistry.MustRegister(x509InsecureSHA1Counter)
+}