ruby: Fix injections query location (#12534)

Marshall Bowers created 

This PR fixes the location of the `injections.scm` query within the Ruby
extension.

Same as #12532, but without the content changes to `injections.scm`.

Release Notes:

- N/A

Change summary

extensions/ruby/languages/ruby/injections.scm | 0 
1 file changed

Detailed changes