The child process should not inherit NODE_V8_COVERAGE because
that clobbers the inspector output the test is checking.
PR-URL: https://github.com/nodejs/node/pull/51816
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ethan Arrowood <ethan@arrowood.dev>