EMFILE: too many open files

Description

Copy of https://github.com/vercel/serve/issues/575

Reopened because despite users having the same issue, it was closed as completed

I am also having this issue, with a request made every ~500ms by ViolentMonkey as part of the 'track external edits' feature. Happens after 20 minutes, as the people were saying in #575.

Library version

14.2.5

Node version

Bun 1.3.3, happens on Node nonetheless