Ruby Warning: Please add osctruct gem

[cryptomilk]

I'm not sure if this project is still maintained. We are using it and with ruby 3.4 I get the following warning:

bundle/gems/simple-navigation-4.4.0/lib/simple_navigation/item_adapter.rb:2:
warning: /usr/local/lib/ruby/3.4.0/ostruct.rb was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.
You can add ostruct to your Gemfile or gemspec to silence this warning.
Also please contact the author of simple-navigation-4.4.0 to request adding ostruct into its gemspec.

[andi]

It's not really maintained anymore, but I'm happy to process a PR if you have time.