Merge pull request #6376 from SuperGoodSoft/make-patch-prepend-explicit

Make OrderRecalculatorPatch prepend explicit

Author: adammathys

promotions/app/patches/models/solidus_promotions/order_recalculator_patch.rb

@@ -10,6 +10,7 @@ def recalculate
       end
       super
     end
-    Spree::Config.order_recalculator_class.prepend self
+
+    Spree::OrderUpdater.prepend self
   end
 end