Enhance ctr images import CLI with '--label' Option for Improved Image Metadata Assignment

[roman-kiselenko]

What is the problem you're trying to solve

The current state of the ctr images import CLI lacks a feature for efficient image metadata management during the import process. To address this, recent changes have been proposed to introduce the --label option.

Describe the solution you'd like

The proposed --label option to the ctr images import will empower users to attach label pairs as metadata to container images during the import operation

Additional context

• Node-image: tag the core bundled images that we want to preserve with a pinned label kubernetes-sigs/kind#3444 attach io.cri-containerd.pinned=pinned at image import command.
• prevents garbage collection from removing pinned images kubernetes/kubernetes#103299
• CRI Pinned image support #7944

Related PR: #9476

/cc @ruiwen-zhao @samuelkarp