fix(crio): ensure unreferenced image garbage collection period is long enough for prefetched images

## Description

During network upgrade, the upgrade controller will prefetch consensus node images by launching a K8s job with an overridden entrypoint. The prefetched image will be unreferenced until the actual upgrade runs. We need to verify and configure the garbage collection period in both CRI-O and Kubelet so the unreferenced image is not garbage collected before it is needed.

## Acceptance Criteria

- [ ] Review the current CRI-O image GC settings configured by the provisioner
- [ ] Review the current Kubelet image GC settings configured by the provisioner
- [ ] Ensure the unreferenced image retention period is long enough to survive between prefetch (prepare phase) and actual upgrade (execute phase)
- [ ] Add or update configuration if the current GC period is too short
- [ ] Add unit/integration tests to verify GC settings