test: move test-benchmark-path to sequential

Fixes: https://github.com/nodejs/node/issues/18254

PR-URL: https://github.com/nodejs/node/pull/21393


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>