Intermittent PASS in /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-reload-location-reload.html

```
  ▶ OK /html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-reload-location-reload.html
  └   ▶ PASS [expected FAIL] Reloading iframe loading='lazy' before it is loaded: location.reload
```
- https://github.com/servo/servo/actions/runs/9650511473/job/26617758314
- https://github.com/servo/servo/actions/runs/9649216836/job/26613094979