/kind cleanup
\## Proposed change
This implements the same change as #1047, except for the new Policy CRD instead of the ClusterPolicy CRD, which apparently did not get those updates before merging.
When deploying Kyverno using Argo CD, we get a persistent false diff for the Policy custom resource definition (the definition itself, not instances of Policy), because Kubernetes converts the invalid AnyValue: {} property types to just an empty dict {}. Since the Kubernetes server makes this change to {} unilaterally after applying, when a diffing tool like Argo CD compares it against the YAML manifest, each such instance of AnyValue appears as a diff.
I know that since AnyValue is not part of the official OpenAPI V3 schema, and that when you run kubectl get crd policies.kyverno.io -o yaml the status message shows Kubernetes complaining about "Required value: must not be empty for specified object fields" for all of these fields. In theory the correct solution would be to somehow provide a full schema, but I know this can be tricky for these data/anyPattern/patches types, but at the minimum, I would like to get Argo CD to believe that there are no changes that need to be applied.
Since these fields are already silently turned into {} by Kubernetes, this should have no functionality change on existing code/deployments.
