Automatic merge from submit-queue. 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>.
Validation for CRD custom resources: feature gate promotion alpha->beta
**What this PR does / why we need it**: This promotes CRD Validation from **alpha** to **beta**.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53829
**Special notes for your reviewer**: Issue #53829 discusses potential blockers to promoting CRD Validation to beta. None of the potential blockers are actual blockers, as they can all be accomplished without backward incompatible changes.
**Release note**:
```release-note
Promote validation for custom resources defined through CRD to beta
```
cc: @sttts @nikhita @mbohlool
321b36c484