Support multiarch images produced by docker manifest or docker buildx

[dsosedov-vmw]

Docker started supporting multiarch images that are bundles containing images for the same application targeting different operating systems and CPU architectures. Such images are generally produced with docker buildx. The final artifact produced by the aforementioned process follows a different schema that is currently not recognized by ImageRepository resources when provided under spec.image. The resource reports the following error:

unable to pull image "repo/project/image:tag": Expected an Image but got: application/vnd.docker.distribution.manifest.list.v2+json

With more dev environments running on M1 (or other ARM) chips but at the same time Kubernetes nodes running on VMs on top of hardware with Intel/AMD chips, this can become a way to streamline image architecture-agnostic creation.