Fix offense constant definition in block in serializer_helper_spec.rb

.rubocop_todo.yml

@@ -11,7 +11,6 @@
 # AllowedMethods: enums
 Lint/ConstantDefinitionInBlock:
   Exclude:
-    - 'spec/helpers/serializer_helper_spec.rb'
     - 'spec/lib/reports/line_items_spec.rb'
     - 'spec/models/spree/ability_spec.rb'
     - 'spec/models/spree/gateway_spec.rb'

spec/helpers/serializer_helper_spec.rb

@@ -4,10 +4,9 @@ require 'spec_helper'
 
 describe SerializerHelper, type: :helper do
   let(:serializer) do
-    class ExampleEnterpriseSerializer < ActiveModel::Serializer
+    Class.new(ActiveModel::Serializer) do
       attributes :id, :name
     end
-    ExampleEnterpriseSerializer
   end
 
   describe "#required_attributes" do