Switch ksm registry to registry.k8s.io

Kubernetes has switched registry from k8s.gcr.io to registry.k8s.io
in kubernetes/kubernetes#109938.

kube-state-metrics also did the switch in
kubernetes/kube-state-metrics#1750.

This commit also updates the registry in a kubeadm configuration
example.

docs/kube-prometheus-on-kubeadm.md

@@ -43,7 +43,7 @@ kubernetesVersion: "v1.23.1"
 networking:
   dnsDomain: "cluster.local"
   serviceSubnet: "10.96.0.0/12"
-imageRepository: "k8s.gcr.io"
+imageRepository: "registry.k8s.io"
 ```
 
 Notice the `.scheduler.extraArgs` and `.controllerManager.extraArgs`. This exposes the `kube-controller-manager` and `kube-scheduler` services to the rest of the cluster. If you have kubernetes core components as pods in the kube-system namespace, ensure that the `kube-prometheus-exporter-kube-scheduler` and `kube-prometheus-exporter-kube-controller-manager` services' `spec.selector` values match those of pods.

jsonnet/kube-prometheus/main.libsonnet

@@ -40,7 +40,7 @@ local utils = import './lib/utils.libsonnet';
         alertmanager: 'quay.io/prometheus/alertmanager:v' + $.values.common.versions.alertmanager,
         blackboxExporter: 'quay.io/prometheus/blackbox-exporter:v' + $.values.common.versions.blackboxExporter,
         grafana: 'grafana/grafana:' + $.values.common.versions.grafana,
-        kubeStateMetrics: 'k8s.gcr.io/kube-state-metrics/kube-state-metrics:v' + $.values.common.versions.kubeStateMetrics,
+        kubeStateMetrics: 'registry.k8s.io/kube-state-metrics/kube-state-metrics:v' + $.values.common.versions.kubeStateMetrics,
         nodeExporter: 'quay.io/prometheus/node-exporter:v' + $.values.common.versions.nodeExporter,
         prometheus: 'quay.io/prometheus/prometheus:v' + $.values.common.versions.prometheus,
         prometheusAdapter: 'registry.k8s.io/prometheus-adapter/prometheus-adapter:v' + $.values.common.versions.prometheusAdapter,

manifests/kubeStateMetrics-deployment.yaml

@@ -32,7 +32,7 @@ spec:
         - --port=8081
         - --telemetry-host=127.0.0.1
         - --telemetry-port=8082
-        image: k8s.gcr.io/kube-state-metrics/kube-state-metrics:v2.6.0
+        image: registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.6.0
         name: kube-state-metrics
         resources:
           limits: