Cleanup hook image with custom registry

[kdgs]

In values.yaml we have image.registry parameter where we can set custom registry to pull k8up image from.

Why dont make the same logic available on the cleanup hook deployment?

Then, instead of having the image hardcoded in the cleanup-hook template image: "bitnami/kubectl:latest (https://github.com/k8up-io/k8up/blob/master/charts/k8up/templates/cleanup-hook.yaml#L86)

It could be improved to image: "{{ .Values.image.registry }}/bitnami/kubectl:latest similar to what we have in the deployment template. (https://github.com/k8up-io/k8up/blob/master/charts/k8up/templates/deployment.yaml#L29)

Or add more fields to values.yaml that could allow this container to be fully customizable. Is this something doable or something that I can contribute on?

[kdgs]

should be fixed with #889