[RFE] Load multi-arch images with podman load

[ctron]

Feature request description

podman save --multi-image-archive allows exporting a "multi arch" container. However, podman load does not allow importing it as multi arch, but seems to only load the host architecture version of that container.

For working in CI's (like GitHub Actions), it would be beneficial to save and load a multi-arch image for transferring it between jobs.

Suggest potential solution

Add --multi-image-archive/-m to the podman load command, which imports a multi-arch image, reproducing the state when it was exported with podman save --multi-image-archive.

Have you considered any alternatives?

I have none.

Additional context

To be fair, docker load does the same. But I'd hope podman could be better.

[github-actions]

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