Aligns the autodevops banner with the gl-ui banner

app/views/shared/_auto_devops_callout.html.haml

-.js-autodevops-banner.banner-callout.banner-non-empty-state.append-bottom-20.prepend-top-10{ data: { uid: 'auto_devops_settings_dismissed', project_path: project_path(@project) } }
-  .banner-graphic
-    = custom_icon('icon_autodevops')
+%section.js-autodevops-banner.gl-banner{ data: { uid: 'auto_devops_settings_dismissed', project_path: project_path(@project) } }
+  .gl-banner-illustration
+    = image_tag('illustrations/autodevops.svg')
 
-  .banner-body.prepend-left-10.append-bottom-10
-    %h5.banner-title= s_('AutoDevOps|Auto DevOps')
+  .gl-banner-content
+    %h1.gl-banner-title= s_('AutoDevOps|Auto DevOps')
     %p= s_('AutoDevOps|It will automatically build, test, and deploy your application based on a predefined CI/CD configuration.')
     %p
       - link = link_to(s_('AutoDevOps|Auto DevOps documentation'), help_page_path('topics/autodevops/index.md'), target: '_blank', rel: 'noopener noreferrer')
       = s_('AutoDevOps|Learn more in the %{link_to_documentation}').html_safe % { link_to_documentation: link }
-    .banner-buttons
-      = link_to s_('AutoDevOps|Enable in settings'), project_settings_ci_cd_path(@project, anchor: 'autodevops-settings'), class: 'btn js-close-callout'
+    = link_to s_('AutoDevOps|Enable in settings'), project_settings_ci_cd_path(@project, anchor: 'autodevops-settings'), class: 'btn btn-info btn-md new-gl-button js-close-callout'
 
-  %button.btn-transparent.banner-close.close.js-close-callout{ type: 'button',
+  %button.gl-banner-close.close.js-close-callout{ type: 'button',
   'aria-label' => 'Dismiss Auto DevOps box' }
     = icon('times', class: 'dismiss-icon', 'aria-hidden' => 'true')