Renamed FeatureGate RequestManagement...

* kubectl set resources will no longer return an error if passed an empty change for a resource.  ([#85490](https://github.com/kubernetes/kubernetes/pull/85490), [@sallyom](https://github.com/sallyom))
    * kubectl set subject will no longer return an error if passed an empty change for a resource.  

    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* fix pod stuck issue due to corrupt mnt point in flexvol plugin, call Unmount if PathExists returns any error ([#75234](https://github.com/kubernetes/kubernetes/pull/75234), [@andyzhangx](https://github.com/andyzhangx))

* fix issue: fail to detach azure disk when there is server side error ([#74398](https://github.com/kubernetes/kubernetes/pull/74398), [@andyzhangx](https://github.com/andyzhangx))
* fix Azure Container Registry anonymous repo image pull error ([#74715](https://github.com/kubernetes/kubernetes/pull/74715), [@andyzhangx](https://github.com/andyzhangx))

  If you specify the kubelet command line flag `--runonce`, this is an error.
  Setting `runOnce` in a kubelet configuration file is also an error, and specifying any
  value for that configuration option is now deprecated. ([#126336](https://github.com/kubernetes/kubernetes/pull/126336), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG Node and Scalability]

* Fix error message regarding conversion of `v1.ListOptions` to `samplecontroller.k8s.io/v1alpha1`. ([#57243](https://github.com/kubernetes/kubernetes/pull/57243), [@munnerz](https://github.com/munnerz))

- Fixes conversion error for HorizontalPodAutoscaler objects with invalid annotations ([#89969](https://github.com/kubernetes/kubernetes/pull/89969), [@liggitt](https://github.com/liggitt)) [SIG Autoscaling]

- Resolves a spurious "Unknown discovery response content-type" error in client-go discovery requests by tolerating extra content-type parameters in API responses ([#117637](https://github.com/...

- Simplied validation error message for invalid fields by removing redundant field name. ([#132513](https://github.com/kubernetes/kubernetes/pull/132513), [@xiaoweim](https://github.com/xiaoweim)) [SIG API Machinery, Apps, Auth, Node and Scheduling]

- Fixes conversion error for HorizontalPodAutoscaler objects with invalid annotations ([#89968](https://github.com/kubernetes/kubernetes/pull/89968), [@liggitt](https://github.com/liggitt)) [SIG Autoscaling]