text: Title: Update the kubernetes object's status with server-side apply
  Body: /kind feature
  
  **Describe the solution you'd like**
  [A clear and concise description of what you want to happen.]
  I'd like to replace the client-side apply with the server-side apply when the controller updates the any statuses like https://github.com/kubeflow/katib/blob/fc858d15dd41ff69166a2020efa200199063f9ba/pkg/controller.v1beta1/experiment/experiment_controller_status.go#L27.
  
  Server-side applies allow us to avoid updating errors due to conflicts, and then it would reduce confusions for users. 
  
  **Anything else you would like to add:**
  [Miscellaneous information that will assist in solving the issue.]
  
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