Rails 7.1: don't over-validate parents

Optimises presence validations by removing an extra query.

config/initializers/new_framework_defaults_7_1.rb

@@ -175,7 +175,7 @@
 # The previous behavior was to validate the presence of the parent record, which performed an extra query
 # to get the parent every time the child record was updated, even when parent has not changed.
 #++
-# Rails.application.config.active_record.belongs_to_required_validates_foreign_key = false
+Rails.application.config.active_record.belongs_to_required_validates_foreign_key = false
 
 ###
 # Enable precompilation of `config.filter_parameters`. Precompilation can