Merge branch 'mw-ca-add-title' into 'master'

Contribution Analytics: Add title to page

See merge request gitlab-org/gitlab!30842

changelogs/unreleased/mw-ca-add-title.yml

+---
+title: 'Contribution Analytics: Add title to page'
+merge_request: 30842
+author:
+type: added

ee/app/views/groups/contribution_analytics/show.html.haml

-- page_title s_("Contribution Analytics")
+- page_title s_('Contribution Analytics')
 
 - if @group.feature_available?(:contribution_analytics)
+  .mb-3
+    %h3
+      = s_('Contribution Analytics')
+
   .sub-header-block
     .float-right
       .dropdown.inline