fix: correct spec context

Author: raphael-goetz

spec/requests/graphql/mutation/users/delete_spec.rb

@@ -31,6 +31,7 @@
   let(:current_user) { create(:user, :admin) }
 
   before do
+    create(:user, :ghost)
     post_graphql mutation, variables: variables, current_user: current_user
   end