Automatic merge from submit-queue (batch tested with PRs 51754, 53261, 53450). 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>.

Rename the name of event source in controller-manager

**What this PR does / why we need it**: Make the event source more obvious 

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #51753

**Special notes for your reviewer**:

**Release note**:

```
NONE
```