test: add option to test-benchmark-timers

Add option to test-benchmark-timers such that all benchmark files return
only a single set of results. (This helps prevent benchmark tests from
taking a long time to run.)

Alphabetize options in the file.

PR-URL: https://github.com/nodejs/node/pull/21032


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>