Return a boolean in OrderWorkflow#advance_to_state

Returns true if advancing was successful, which is helpful in control flows that use the method in a conditional

app/services/order_workflow.rb

@@ -44,6 +44,8 @@ class OrderWorkflow
 
       after_transition_hook(options)
     end
+
+    order.state == target_state
   end
 
   def advance_order!(options)