Update stoplight to version 4.1.0 (#28366)

config/initializers/stoplight.rb

@@ -3,6 +3,6 @@
 require 'stoplight'
 
 Rails.application.reloader.to_prepare do
-  Stoplight::Light.default_data_store = Stoplight::DataStore::Redis.new(RedisConfiguration.new.connection)
-  Stoplight::Light.default_notifiers  = [Stoplight::Notifier::Logger.new(Rails.logger)]
+  Stoplight.default_data_store = Stoplight::DataStore::Redis.new(RedisConfiguration.new.connection)
+  Stoplight.default_notifiers  = [Stoplight::Notifier::Logger.new(Rails.logger)]
 end