K8s 642 Redb Admission Webhook Name Change

[Versions 6.4.2 and later]({{< relref "/operate/kubernetes/release-notes/6-4-2-releases/" >}}) uses a new ValidatingWebhookConfiguration resource to replace redb-admission. To use newer releases, delete the old webhook resource and apply the new file.

1. Delete the existing ValidatingWebhookConfiguration on the Kubernetes cluster (named redb-admission).

   Copy

    ```sh
    kubectl delete ValidatingWebhookConfiguration redb-admission
    ```
   

2. Apply the resource from the new file.

   Copy

    ```sh
    kubectl apply -f deploy/admission/webhook.yaml
    ```