Merge branch 'unified_notes_description_versions_part' into 'master'

Add description version unification for epic and epic work item

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/157161



Merged-by: Felipe Artur <fcardozo@gitlab.com>
Approved-by: Jarka Košanová <jarka@gitlab.com>
Approved-by: Felipe Artur <fcardozo@gitlab.com>
Reviewed-by: Felipe Artur <fcardozo@gitlab.com>
Reviewed-by: Jarka Košanová <jarka@gitlab.com>
Reviewed-by: Alexandru Croitor <acroitor@gitlab.com>
Reviewed-by: Nicolas Dular <ndular@gitlab.com>
Co-authored-by: Alexandru Croitor <acroitor@gitlab.com>