update the version of kube-apiser and kube-controller-manager from v1.20.11 to v1.21.7

Signed-off-by: Shike-Ada <1073457937@qq.com>

artifacts/deploy/karmada-apiserver.yaml

@@ -64,7 +64,7 @@ spec:
             - --tls-cert-file=/etc/kubernetes/pki/karmada.crt
             - --tls-private-key-file=/etc/kubernetes/pki/karmada.key
           name: karmada-apiserver
-          image: k8s.gcr.io/kube-apiserver:v1.20.11
+          image: k8s.gcr.io/kube-apiserver:v1.21.7
           imagePullPolicy: IfNotPresent
           livenessProbe:
             failureThreshold: 8

artifacts/deploy/kube-controller-manager.yaml

@@ -52,7 +52,7 @@ spec:
             - --service-cluster-ip-range=10.96.0.0/12
             - --use-service-account-credentials=true
             - --v=4
-          image: k8s.gcr.io/kube-controller-manager:v1.20.11
+          image: k8s.gcr.io/kube-controller-manager:v1.21.7
           imagePullPolicy: IfNotPresent
           name: kube-controller-manager
           resources:

charts/values.yaml

@@ -197,7 +197,7 @@ apiServer:
     ## @param apiServer.image.pullPolicy pull policy of image
     pullPolicy: IfNotPresent
     ## @param apiServer.image.tag overrides the image tag whose default is the latest
-    tag: "v1.20.11"
+    tag: "v1.21.7"
   ## @param apiServer.resources
   resources: { }
     # If you do want to specify resources, uncomment the following
@@ -249,7 +249,7 @@ kubeControllerManager:
     ## @param kubeControllerManager.image.pullPolicy pull policy of image
     pullPolicy: IfNotPresent
     ## @param kubeControllerManager.image.tag overrides the image tag whose default is the latest
-    tag: "v1.20.11"
+    tag: "v1.21.7"
   ## @param kubeControllerManager.resources
   resources:
     # If you do want to specify resources, uncomment the following