Add link to create Google account in clusters page

app/views/projects/clusters/login.html.haml

@@ -11,6 +11,8 @@
     - if @authorize_url
       = link_to @authorize_url do
         = image_tag('auth_buttons/signin_with_google.png', width: '191px')
+      = s_('ClusterIntegration|or create a new')
+      = link_to('Google account', 'https://accounts.google.com/signup', target: '_blank', rel: 'noopener noreferrer')
     - else
       - link = link_to(s_('ClusterIntegration|properly configured'), help_page_path("integration/google"), target: '_blank', rel: 'noopener noreferrer')
       = s_('Google authentication is not %{link_to_documentation}. Ask your GitLab administrator if you want to use this service.').html_safe % { link_to_documentation: link }

spec/features/projects/clusters_spec.rb

@@ -201,6 +201,7 @@ feature 'Clusters', :js do
 
     it 'user sees a login page' do
       expect(page).to have_css('.signin-with-google')
+      expect(page).to have_link('Google account')
     end
   end
 end