some metrics of resource control cannot show correctly #56547
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
deploy the cluster with tidb-operator, and then check the metrics.
2. What did you expect to see? (Required)
show grafana panel with correct data
3. What did you see instead (Required)
4. What is your TiDB version? (Required)
master,8.4