Bump k8s.io deps to v0.25.3

Signed-off-by: Luca Comellini <luca.com@gmail.com>

vendor/k8s.io/component-base/metrics/counter.go

@@ -18,6 +18,7 @@ package metrics
 
 import (
 	"context"
+
 	"github.com/blang/semver/v4"
 	"github.com/prometheus/client_golang/prometheus"
 	dto "github.com/prometheus/client_model/go"
@@ -106,9 +107,14 @@ type CounterVec struct {
 	originalLabels []string
 }
 
-// NewCounterVec returns an object which satisfies the kubeCollector and CounterVecMetric interfaces.
+var _ kubeCollector = &CounterVec{}
+
+// TODO: make this true: var _ CounterVecMetric = &CounterVec{}
+
+// NewCounterVec returns an object which satisfies the kubeCollector and (almost) CounterVecMetric interfaces.
 // However, the object returned will not measure anything unless the collector is first
-// registered, since the metric is lazily instantiated.
+// registered, since the metric is lazily instantiated, and only members extracted after
+// registration will actually measure anything.
 func NewCounterVec(opts *CounterOpts, labels []string) *CounterVec {
 	opts.StabilityLevel.setDefaults()
 
@@ -149,13 +155,16 @@ func (v *CounterVec) initializeDeprecatedMetric() {
 	v.initializeMetric()
 }
 
-// Default Prometheus behavior actually results in the creation of a new metric
-// if a metric with the unique label values is not found in the underlying stored metricMap.
+// Default Prometheus Vec behavior is that member extraction results in creation of a new element
+// if one with the unique label values is not found in the underlying stored metricMap.
 // This means  that if this function is called but the underlying metric is not registered
 // (which means it will never be exposed externally nor consumed), the metric will exist in memory
 // for perpetuity (i.e. throughout application lifecycle).
 //
 // For reference: https://github.com/prometheus/client_golang/blob/v0.9.2/prometheus/counter.go#L179-L197
+//
+// In contrast, the Vec behavior in this package is that member extraction before registration
+// returns a permanent noop object.
 
 // WithLabelValues returns the Counter for the given slice of label
 // values (same order as the VariableLabels in Desc). If that combination of