With the latest upgrade of our clusters (k8s 1.33), we see the following warning present in the external-secret-cert-controller:

I0704 05:41:18.171816       1 warnings.go:110] "Warning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice"

To avoid using the deprecated API, we should make the code changes (as described here).

The change involves:

• rbac adjustments for cert-controller https://github.com/external-secrets/external-secrets/blob/main/deploy/charts/external-secrets/templates/cert-controller-rbac.yaml#L40
• transition to discovery api for endpointslices https://github.com/external-secrets/external-secrets/blob/main/pkg/controllers/crds/crds_controller.go#L170

Note: I volunteer to make the change if you would have patience with me (first time contributor to ext-secrets)