[lima-kilo] cache container images
- create new playbook for setting up cache VM
- configure cache VM to run pull-through cache registries for each of allowedRegistries (tools-harbor, toolsbeta-harbor, docker-registry)
- configure lima-kilo VM to use the cache registries by default
Depends-on: !198 (merged)
Signed-off-by: raymond-ndibe rndibe@wikimedia.org