Intermittent PASS in `/IndexedDB/key-conversion-exceptions.any.worker.html`

```
Stable unexpected results (1): 
  ▶ OK /IndexedDB/key-conversion-exceptions.any.worker.html
  └   ▶ PASS [expected FAIL] IDBCursor continue() method with throwing/invalid keys
```

https://github.com/servo/servo/actions/runs/17694519745/job/50292679254