Merge pull request #24002 from 5t111111/fix-typo-in-app_generator_test

Fix typo in app_generator_test.rb

railties/test/generators/app_generator_test.rb

@@ -200,7 +200,7 @@ def test_rails_update_does_not_remove_callback_terminator_initializer_if_already
     end
   end
 
-  def test_rails_update_set_the_cookie_serializer_to_marchal_if_it_is_not_already_configured
+  def test_rails_update_set_the_cookie_serializer_to_marshal_if_it_is_not_already_configured
     app_root = File.join(destination_root, 'myapp')
     run_generator [app_root]