add "ruby4?"

[jlsync]

So ruby 4.0.0 didn't work out of the box. This pull request is mostly FYI.

[claudiob]

Not sure if this is related but this is the only warning I saw after deploying a Rails app in production with Ruby 4:

[Scout] WARN : The method [ActionView::PartialRenderer#render_partial] does not exist and will not be instrumented
[Scout] WARN : The method [ActionView::PartialRenderer#collection_with_template] does not exist and will not be instrumented

[lancetarn]

All right! Thanks for this. We'll do a pass for other compatibility issues as well.

[nickjer]

Just wondering when this might get looked at. We are blocked on updating to Ruby 4 due to this package.