Move from btn-success to btn-confirm in projects/mirrors directory

app/views/projects/mirrors/_mirror_repos.html.haml

@@ -35,7 +35,7 @@
                 = link_to _('Learn more.'), help_page_path('user/project/repository/repository_mirroring', anchor: 'mirror-only-protected-branches'), target: '_blank', rel: 'noopener noreferrer'
 
           .panel-footer
-            = f.submit _('Mirror repository'), class: 'gl-button btn btn-success js-mirror-submit qa-mirror-repository-button', name: :update_remote_mirror
+            = f.submit _('Mirror repository'), class: 'gl-button btn btn-confirm js-mirror-submit qa-mirror-repository-button', name: :update_remote_mirror
     - else
       .gl-alert.gl-alert-info{ role: 'alert' }
         = sprite_icon('information-o', css_class: 'gl-icon gl-alert-icon gl-alert-icon-no-title')

changelogs/unreleased/btn-confirm-project-mirrors.yml

+---
+title: Move from btn-success to btn-confirm in mirrors directory
+merge_request: 56343
+author: Yogi (@yo)
+type: changed