[Flaky CI]: Promisebuffer unit test in Core

[Lms24]

Flakiness Type

Assertion failure

Name of Job

Node (24) Unit Tests

Name of Test

test/lib/utils/promisebuffer.test.ts > PromiseBuffer > drain() > drains all promises with timeout (@sentry/core)

Link to Test Run

https://github.com/getsentry/sentry-javascript/actions/runs/20596523586/job/59152535610#step:7:1432

Details

Looks like we might be running into some kind of race condition 🤔

[linear]

JS-1373

[Lms24]

this flakes quite a lot. another run: https://github.com/getsentry/sentry-javascript/actions/runs/20596523586/job/59152535610#step:7:1516