Make multer non-flaky on macOS in CITGM #1295
Description
In CITGM, multer is not running on macOS due to an unknown issue (for more references, see nodejs/citgm#999). The goal is to get the tests running on macOS again from the Node.js side.
This is important because if there is a bug on macOS that breaks multer, we will be informed before Node.js releases a new version.