Automatic merge from submit-queue (batch tested with PRs 55606, 59185, 58763, 59072, 59251). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix a typo in pkg/controller/volume/persistentvolume/pv_controller.go
**What this PR does / why we need it**:
Fix typo (a -> an)
**Special notes for your reviewer**:
none
**Release note**:
```release-note
none
```
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