Allow false on aborted enqueue

This fixes some deprecation warnings

config/initializers/new_framework_defaults_6_0.rb

@@ -22,7 +22,7 @@
 # Rails.application.config.action_dispatch.return_only_media_type_on_content_type = false
 
 # Return false instead of self when enqueuing is aborted from a callback.
-# Rails.application.config.active_job.return_false_on_aborted_enqueue = true
+Rails.application.config.active_job.return_false_on_aborted_enqueue = true
 
 # Send Active Storage analysis and purge jobs to dedicated queues.
 # Rails.application.config.active_storage.queues.analysis = :active_storage_analysis