Merge branch 'freznicek-allow-long-group-description' into 'master'

Allow long group description (frontend: remove `maxlength` limit)

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/132451



Merged-by: Eduardo Sanz García <esanz-garcia@gitlab.com>
Approved-by: Eduardo Sanz García <esanz-garcia@gitlab.com>
Co-authored-by: František Řezníček <freznicek@users.noreply.gitlab.com>