Respect CONTAINERS_REGISTRIES_CONF

[0x0D15]

Currently it looks as if buildah disregards the podman registry path environment variable CONTAINERS_REGISTRIES_CONF and instead containues to load the registry file from the default path irregardless of whether CONTAINERS_REGISTRIES_CONF is set.

Could the behavior between buildah and podman be synchronized in this regard?

[rhatdan]

Interested in opening a PR?

[github-actions]

A friendly reminder that this issue had no activity for 30 days.

[Luap99]

This may be solved as part of the config file changes, see
containers/podman#27657