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/flowcontrol/metrics/interface.go

@@ -0,0 +1,67 @@
+/*
+Copyright 2019 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 metrics
+
+// Gauge is the methods of a gauge that are used by instrumented code.
+type Gauge interface {
+	Set(float64)
+	Inc()
+	Dec()
+	Add(float64)
+	SetToCurrentTime()
+}
+
+// RatioedGauge tracks ratios.
+// The numerator is set/changed through the Gauge methods,
+// and the denominator can be updated through the SetDenominator method.
+// A ratio is tracked whenever the numerator or denominator is set/changed.
+type RatioedGauge interface {
+	Gauge
+
+	// SetDenominator sets the denominator to use until it is changed again
+	SetDenominator(float64)
+}
+
+// RatioedGaugeVec creates related observers that are
+// differentiated by a series of label values
+type RatioedGaugeVec interface {
+	// NewForLabelValuesSafe makes a new vector member for the given tuple of label values,
+	// initialized with the given numerator and denominator.
+	// Unlike the usual Vec WithLabelValues method, this is intended to be called only
+	// once per vector member (at the start of its lifecycle).
+	// The "Safe" part is saying that the returned object will function properly after metric registration
+	// even if this method is called before registration.
+	NewForLabelValuesSafe(initialNumerator, initialDenominator float64, labelValues []string) RatioedGauge
+}
+
+//////////////////////////////// Pairs ////////////////////////////////
+//
+// API Priority and Fairness tends to use RatioedGaugeVec members in pairs,
+// one for requests waiting in a queue and one for requests being executed.
+// The following definitions are a convenience layer that adds support for that
+// particular pattern of usage.
+
+// RatioedGaugePair is a corresponding pair of gauges, one for the
+// number of requests waiting in queue(s) and one for the number of
+// requests being executed.
+type RatioedGaugePair struct {
+	// RequestsWaiting is given observations of the number of currently queued requests
+	RequestsWaiting RatioedGauge
+
+	// RequestsExecuting is given observations of the number of requests currently executing
+	RequestsExecuting RatioedGauge
+}