chore: upgrade to rails 7.1 and ruby 3.4 (#3457)

spec/rails_helper.rb

@@ -10,14 +10,12 @@ require "rspec/rails"
 require "spec_helper"
 require "factory_bot"
 require "timecop"
-require "database_cleaner"
 require "webmock/rspec"
 require "shoulda-matchers"
 
 DatabaseCleaner.allow_remote_database_url = true
 ActiveRecord::Base.logger = Logger.new("/dev/null")
 
-Dir[File.expand_path("factories/*.rb", __dir__)].each { |f| require f }
 Dir[File.expand_path("helpers/**/*.rb", __dir__)].each { |f| require f }
 
 ActionMailer::Base.delivery_method = :test