Consider removing the token from the `gitlab-releases` gem
The gitlab-releases gem considered the release-tools codebase for its architecture, it re-uses the idea of a token to fetch the information from the versions.
Noting the versions API endpoint doesn't require authentication, we should analyze if the token requirement can be removed from the gitlab-releases gem. This would make the adoption of the gem more transparent, although if we ever need to combine the version information with the GitLab API, we might need to have a token set up after all.