Intermittent PASS in `/IndexedDB/delete-request-queue.any.worker.html`

```
Stable unexpected results (1): 
  ▶ OK /IndexedDB/delete-request-queue.any.worker.html
  └   ▶ PASS [expected FAIL] Deletes are processed as a FIFO queue
```

https://github.com/servo/servo/actions/runs/17568894009/job/49901386228