`multer` fails in Ubuntu / Node.js 26.x in GitHub Actions

[MikeMcC399]

Module multer fails in Ubuntu / Node.js 26.x when manually tested in https://github.com/nodejs/citgm/actions/workflows/test-module.yml

...

error:                     | 166 passing (10s)
error:                     | 1 failing
error:                     |
error:                     | 1) disk storage flush cleanup on aborted uploads
error:                     | should defer the abort unlink until the flush descriptor is closed:
error:                     |
error:                     | Uncaught AssertionError [ERR_ASSERTION]: _removeFile callback never fired (cleanup hung)
error:                     | + expected - actual
error:                     |
error:                     | -false
error:                     | +true
error:                     |
error:                     | at Timeout._onTimeout (test/abort-flush-fd-race.js:108:16)
error:                     | at listOnTimeout (node:internal/timers:685:17)
error:                     | at process.processTimers (node:internal/timers:618:7)
error: done                | The smoke test has failed.

cc: @LinusU @UlisesGascon

Originally posted by @MikeMcC399 in #1096 (comment)

[MikeMcC399]

On Ubuntu 26.04.1 LTS with Node.js 26.10.0 tested locally:

npm install citgm@10.0.3 -g
citgm multer

succeeds with:

$ citgm multer
info: starting            | multer
info: lookup              | multer
info: lookup-found        | multer
info: multer lookup-replace| https://github.com/expressjs/multer/archive/35979e5afbb814bdb4b750ce028b125eb84c53af.tar.gz
info: multer npm:         | Downloading project: https://github.com/expressjs/multer/archive/35979e5afbb814bdb4b750ce028b125eb84c53af.tar.gz
info: multer npm:         | Project downloaded 35979e5afbb814bdb4b750ce028b125eb84c53af.tar.gz
info: multer npm:         | npm install started
info: multer npm:         | npm install successfully completed
info: multer npm:         | test suite started
info: passing module(s)   |
info: module name:        | multer
info: version:            | 2.4.0
info: done                | The smoke test has passed.
info: duration            | test duration: 28717ms

So the root cause of the failure in GitHub Actions is currently unclear. It appears to be a timing bug somewhere.