test: fix inspector tests after V8 upgrade

V8 improved break locations for the node --inspect-brk -e case.

PR-URL: https://github.com/nodejs/node/pull/21983


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>