Update copy of in-app Gold trial banner to reflect plan changes

ee/app/views/shared/_gold_trial_callout_content.html.haml

@@ -9,7 +9,7 @@
         = image_tag 'illustrations/golden_tanuki.svg', class: 'svg'
       .d-flex.flex-grow.align-items-center
         .user-callout-copy.ml-0
-          %h5.mb-0.mt-0= _('Free Trial of GitLab.com Gold')
+          %h5.mb-0.mt-0= _('Free Trial of GitLab.com Ultimate')
           %p.mb-0
             %span= _('Try all GitLab has to offer for 30 days.')
             %span.d-none.d-sm-inline= _('No credit card required.')

locale/gitlab.pot

@@ -12859,7 +12859,7 @@ msgstr ""
 msgid "Free Trial"
 msgstr ""
 
-msgid "Free Trial of GitLab.com Gold"
+msgid "Free Trial of GitLab.com Ultimate"
 msgstr ""
 
 msgid "Freeze end"