module: path-only CJS exports extension searching

PR-URL: https://github.com/nodejs/node/pull/32351


Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com>
Reviewed-By: Bradley Farias <bradley.meck@gmail.com>
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>