Clean up extensions/v1beta1 in docs (#19379)

Author: huchengze

content/zh/docs/tasks/manage-kubernetes-objects/imperative-config.md

@@ -249,11 +249,11 @@ Example label:
 ```yaml
 selector:
   matchLabels:
-      controller-selector: "extensions/v1beta1/deployment/nginx"
+      controller-selector: "apps/v1/deployment/nginx"
 template:
   metadata:
     labels:
-      controller-selector: "extensions/v1beta1/deployment/nginx"
+      controller-selector: "apps/v1/deployment/nginx"
 ```
 
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