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

app/views/projects/protected_branches/shared/_create_protected_branch.html.haml

@@ -30,4 +30,4 @@
               = s_("ProtectedBranch|Allow force push for all users with push access.")
       = render_if_exists 'projects/protected_branches/ee/code_owner_approval_form', f: f
     .card-footer
-      = f.submit s_('ProtectedBranch|Protect'), class: 'btn-success gl-button btn', disabled: true, data: { qa_selector: 'protect_button' }
+      = f.submit s_('ProtectedBranch|Protect'), class: 'gl-button btn btn-confirm', disabled: true, data: { qa_selector: 'protect_button' }

changelogs/unreleased/btn-confirm-protected-branches.yml

+---
+title: Move from btn-success to btn-confirm in protected_branches directory
+merge_request: 56477
+author: Yogi (@yo)
+type: changed