[Feature Request]: lock-service support cancel restart service and query phase

### Is there an existing issue for the same feature request?

- [X] I have checked the existing issues.

### Is your feature request related to a problem?

#15194 introduced a lock-service graceful rolling-restart mechanism, but there are two problems:

1. after `SetRestartService` is called, the CN must be restarted otherwise it would not be able to serve lock request anymore, a cancel mechanism is needed to cancel `SetRestartService`, which enables the CN serving lock request without restart;
2. there is no way to query current phase of lock migration

### Describe the feature you'd like

Lock service support cancel restart service and support query phase

### Describe implementation you've considered

_No response_

### Documentation, Adoption, Use Case, Migration Strategy

_No response_

### Additional information

_No response_