Fix the tiny typo in ks-openapi-spec (#5114)

There is tiny typo in Create Namespace API.
So fix it quickly.

api/ks-openapi-spec/swagger.json

@@ -12711,7 +12711,7 @@
         "tags": [
           "Namespace"
         ],
-        "summary": "List the namespaces of the specified workspace for the current user",
+        "summary": "Create the namespaces of the specified workspace for the current user",
         "operationId": "CreateNamespace",
         "parameters": [
           {

pkg/kapis/tenant/v1alpha2/register.go

@@ -190,7 +190,7 @@ func AddToContainer(c *restful.Container, factory informers.InformerFactory, k8s
 	ws.Route(ws.POST("/workspaces/{workspace}/namespaces").
 		To(handler.CreateNamespace).
 		Param(ws.PathParameter("workspace", "workspace name")).
-		Doc("List the namespaces of the specified workspace for the current user").
+		Doc("Create the namespaces of the specified workspace for the current user").
 		Reads(corev1.Namespace{}).
 		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}).
 		Metadata(restfulspec.KeyOpenAPITags, []string{constants.NamespaceTag}))