remove mention of sales email

ee/app/views/admin/licenses/_breakdown.html.haml

@@ -52,4 +52,4 @@
             %a{ href: 'https://about.gitlab.com/license-faq/' } true-up model
             has a retroactive charge for these users at the next renewal. If you want to update your
             license sooner to prevent this, please contact
-            #{mail_to 'sales@gitlab.com'}.
+            #{mail_to 'renewals@gitlab.com'}.