test,tools: increase timeout for benchmark tests

test-benchmark-buffer is consistently timing out on a single Windows
host in CI. Rather than try to figure out if we need to scale the
timeout up for a certain memory limit or chip speed or something else,
let's increase the timeout for benchmark tests in general.

PR-URL: https://github.com/nodejs/node/pull/40684


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Voltrex <mohammadkeyvanzade94@gmail.com>