tools: apply more stringent lint rules for benchmark code

All benchmark code uses trailing commas on multi-line arrays and arrow
functions for anonymous callbacks. Apply lint rules to that effect.

PR-URL: https://github.com/nodejs/node/pull/25944


Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>