Unable to get the node label list of member cluster

Created by: LinuxSuRen

Describe the bug Having a multi-cluster environment. The node label list is empty when users try to create a Pipeline with graphic mode. The Pipeline belongs to a member cluster. As you can see below, the API request got a 404 response.

According to my tests. The following API request is ok:

http://ip:port/kapis/clusters/member/devops.kubesphere.io/v1alpha2/devops/solo-projecthcbrh/jenkins/labelsdashboard/labelsData

The incorrect API is: http://ip:port/kapis/devops.kubesphere.io/v1alpha2/devops/solo-projecthcbrh/jenkins/labelsdashboard/labelsData

/area devops /priority high

Versions used(KubeSphere/Kubernetes) KubeSphere: v3.1.0

The host and member cluster are all v3.1.0.

Environment This is not an environmental issue.

To Reproduce Steps to reproduce the behavior:

1. Have two cluster, the host cluster named host; the member cluster named member
2. Create a Pipeline on a member cluster
3. Select the node label on the Pipeline graphic editing page
4. No label items

Expected behavior The node labels list cannot be empty on the member cluster.