test: use consistent test naming

To conform with other test names, move
test/async-hooks/test-httparser-reuse.js to
test/async-hooks/test-httpparser-reuse.js.

PR-URL: https://github.com/nodejs/node/pull/28744


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>