vendor: bump k8s to v0.25.4

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/k8s.io/utils/clock/testing/simple_interval_clock.go

@@ -0,0 +1,44 @@
+/*
+Copyright 2021 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 testing
+
+import (
+	"time"
+
+	"k8s.io/utils/clock"
+)
+
+var (
+	_ = clock.PassiveClock(&SimpleIntervalClock{})
+)
+
+// SimpleIntervalClock implements clock.PassiveClock, but each invocation of Now steps the clock forward the specified duration
+type SimpleIntervalClock struct {
+	Time     time.Time
+	Duration time.Duration
+}
+
+// Now returns i's time.
+func (i *SimpleIntervalClock) Now() time.Time {
+	i.Time = i.Time.Add(i.Duration)
+	return i.Time
+}
+
+// Since returns time since the time in i.
+func (i *SimpleIntervalClock) Since(ts time.Time) time.Duration {
+	return i.Time.Sub(ts)
+}