Automatic merge from submit-queue (batch tested with PRs 47403, 46646, 46906, 46527, 46792)
[Federation] Convert the ReplicaSet controller to a sync controller.
See #45563 for previous discussion: that PR was split into two, with this one containing the actual conversion work and that one containing the implementation of the scheduling methods in the sync controller.
**Release note**:
```release-note
NONE
```