Automatic merge from submit-queue (batch tested with PRs 50536, 50809, 50220, 50399, 50176)

mark created-by annotation as deprecated

**What this PR does / why we need it**: This PR marks created-by annotation as deprecated in code comments.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: xref #44407 

**Special notes for your reviewer**:

**Release note**:

```release-note
The `kubernetes.io/created-by` annotation is now deprecated and will be removed in v1.9. Use [ControllerRef](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/controller-ref.md) instead to determine which controller, if any, owns an object.
```