Automatic merge from submit-queue (batch tested with PRs 47144, 46699)

Update statefulset reaper use StatefulSetHasDesiredReplicas

**What this PR does / why we need it**:
StatefulSetHasDesiredReplicas condition should check ObservedGeneration and update statefulset reaper use StatefulSetHasDesiredReplicas
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #43325

**Special notes for your reviewer**:

**Release note**:
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