* repomirror: Use skopeo list-tags to get repo tags
`skopeo inspect foo` returns infromation about the image `foo:latest`,
and repository tags. Quay needs only list of tags, so it should use
`skopeo list-tags` that doesn't fail if `foo:latest` doesn't exist.
* Update type hints
* On local-dev Quay does not provide valid TLS certificate
15ea8350db