Merge pull request rails#49031 from yahonda/cache_format_version_7_1_for_railtie_test

Configure `config.active_support.cache_format_version = 7.1` for `RailtieTest`

Author: yahonda

activemodel/test/cases/railtie_test.rb

@@ -15,6 +15,7 @@ def setup
     @app ||= Class.new(::Rails::Application) do
       config.eager_load = false
       config.logger = fake_logger
+      config.active_support.cache_format_version = 7.1
     end
   end