Add "registrar_with_unlimited_balance" factory

#248

spec/features/registrar/domains/csv_export_spec.rb

@@ -3,7 +3,7 @@ require 'rails_helper'
 RSpec.feature 'CSV Export' do
   background do
     Setting.registrar_ip_whitelist_enabled = false
-    sign_in_to_registrar_area(user: FactoryGirl.create(:api_user))
+    sign_in_to_registrar_area(user: create(:api_user_with_unlimited_balance))
   end
 
   scenario 'exports csv' do