CRD: preserveUnknownFields is deprecated and should be removed

[sebv7]

What steps did you take and what happened:
The spec.preserveUnknownFields has been deprecated in favor of x-kubernetes-preserve-unknown-fields: true in the CRD v1.

This means that CRD deployed with Argo CD containing spec.preserveUnknownFields: false will be out of sync. To address this problem, the preserveUnknownFields field can be removed from the CRD spec.

Anything else you would like to add:
Affects OPA Gatekeeper if deployed by Argo CD v3.0.
https://argo-cd.readthedocs.io/en/stable/operator-manual/upgrading/2.14-3.0/#removing-default-ignores-of-preserveunknownfields-for-crd

Environment:

• Gatekeeper version: v3.20.0
• Kubernetes version: (use kubectl version): v1.32.6

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.

[vinmarco]

there is any update on this ?

[JaydipGabani]

@vinmarco do you want to take a shot at this?

[vinmarco]

@JaydipGabani what I should do here ? only remove the preserveUnknownFields: false from the files ?