Move this project to https://gitlab.com/gitlab-org/ruby/gems
As suggested in gitlab-org/gitlab!73669 (merged) Ruby gems should be located in https://gitlab.com/gitlab-org/ruby/gems.
Moving the project also has the benefit of inherit CI/CD variables from the groups gems
required for releasing a gem automatically.
See https://gitlab.com/gitlab-org/tanuki_emoji/-/issues/8#note_906087091
/cc @brodock @cablett @mwoolf @kerrizor @brytannia @splattael @digitalmoksha @smcgivern @jlear
Edited by Peter Leitzen