show output of podman image search --list-tags command

[mbussolotto]

What does this PR change?

show output of podman image search --list-tags command, so in case of failure it would provide more info. E.g.

suma50:~ # ./mgradm upgrade podman list --image registry.suse.com/suse/manager/5.0/x86_64/server
3:53PM INF Welcome to mgradm
3:53PM INF Executing command: list
3:53PM INF Running podman image search --list-tags registry.suse.com/suse/manager/5.0/x86_64/server --format={{.Tag}}
Error: 1 error occurred:
	* getting repository tags: fetching tags list: requested access to the resource is denied

or

suma50:~ # ./mgradm upgrade podman list
3:58PM INF Welcome to mgradm
3:58PM INF Executing command: list
3:58PM INF Running podman image search --list-tags registry.opensuse.org/uyuni/server --format={{.Tag}}
2024.05
2024.05.37.23.uyuni3
latest

Test coverage

• No tests

• DONE

Links

Issue(s): #372

• DONE

Changelogs

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