`Ripper` is overtaken by `Prism::Translation::Ripper`

I've bisected this to https://github.com/ruby/rdoc/pull/1621 but don't know about a fix

<img width="420" height="363" alt="Image" src="https://github.com/user-attachments/assets/f656c53d-24ca-476c-ae89-8b9fbf0fb17e" />