Internationalize "Keep divergent refs" option

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

@@ -9,4 +9,4 @@
   = render partial: 'projects/mirrors/authentication_method', locals: { f: rm_f }
   .form-check.append-bottom-10
     = check_box_tag :keep_divergent_refs, '1', false, class: 'js-mirror-keep-divergent-refs form-check-input'
-    = label_tag :keep_divergent_refs, 'Keep divergent refs', class: 'form-check-label'
+    = label_tag :keep_divergent_refs, _('Keep divergent refs'), class: 'form-check-label'

locale/gitlab.pot

@@ -12266,6 +12266,9 @@ msgstr ""
 msgid "Just me"
 msgstr ""
 
+msgid "Keep divergent refs"
+msgstr ""
+
 msgid "Key"
 msgstr ""