Rename the test, include integration in the name because it test integration with the transformation pipeline.

Author: dysk

…ns/refund_to_return_event_mapper_test.rb …_return_event_mapper_integration_test.rbrails_application/test/transformations/refund_to_return_event_mapper_test.rb renamed to rails_application/test/transformations/refund_to_return_event_mapper_integration_test.rb rails_application/test/transformations/refund_to_return_event_mapper_test.rb renamed to rails_application/test/transformations/refund_to_return_event_mapper_integration_test.rb

@@ -1,6 +1,6 @@
 require "test_helper"
 
-class RefundToReturnEventMapperTest < ActiveSupport::TestCase
+class RefundToReturnEventMapperIntegrationTest < ActiveSupport::TestCase
   def setup
     @mapper = RubyEventStore::Mappers::PipelineMapper.new(
       RubyEventStore::Mappers::Pipeline.new(