worker: runtime error on pthread creation

With large number of worker threads pthread
fails with hard assertion.
Instead of hard assertion throw a runtime error.

PR-URL: https://github.com/nodejs/node/pull/32344
Fixes: https://github.com/nodejs/node/issues/32319


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>