Support finding repos in nested sub-groups in GitLab

[a-magdy]

Hi there,

I am testing this tools against a big org, with multiple levels of sub-groups, but noticed that tool picks up only the repos in the root group/namespace, even though there are multiple sub-groups with many repos in there

Could you please add support to auto discover sub-groups and iterate over them in the audit command

I can see the docker image is hosted here, but the code is not available: https://github.com/orgs/actions-importer/packages/container/package/cli

Thanks in advance,
Ahmed