Upgrade the karmada component image version to v1.8.0 in karmada.yaml for operator installation

Signed-off-by: zhzhuang-zju <m17799853869@163.com>

operator/config/samples/karmada.yaml

@@ -31,24 +31,36 @@ spec:
       serviceSubnet: 10.96.0.0/12
     karmadaAggregatedAPIServer:
       imageRepository: docker.io/karmada/karmada-aggregated-apiserver
-      imageTag: v1.7.0
+      imageTag: v1.8.0
       replicas: 1
     karmadaControllerManager:
       imageRepository: docker.io/karmada/karmada-controller-manager
-      imageTag: v1.7.0
+      imageTag: v1.8.0
       replicas: 1
     karmadaScheduler:
       imageRepository: docker.io/karmada/karmada-scheduler
-      imageTag: v1.7.0
+      imageTag: v1.8.0
       replicas: 1
     karmadaWebhook:
       imageRepository: docker.io/karmada/karmada-webhook
-      imageTag: v1.7.0
+      imageTag: v1.8.0
       replicas: 1
     kubeControllerManager:
       imageRepository: registry.k8s.io/kube-controller-manager
       imageTag: v1.25.4
       replicas: 1
+    karmadaMetricsAdapter:
+      imageRepository: docker.io/karmada/karmada-metrics-adapter
+      imageTag: v1.8.0
+      replicas: 2
+    # karmadaSearch: # the component `Karmadasearch` is not installed by default, if you need to install it, uncomment it and note the formatting
+      # imageRepository: docker.io/karmada/karmada-search
+      # imageTag: v1.8.0
+      # replicas: 1
+    # karmadaDescheduler: # the component `KarmadaDescheduler` is not installed by default, if you need to install it, uncomment it and note the formatting
+      # imageRepository: docker.io/karmada/karmada-descheduler
+      # imageTag: v1.8.0
+      # replicas: 1
   hostCluster:
     networking:
       dnsDomain: cluster.local