[visionOS] Fix GULReachabilityCheckerTest in Xcode 15.1 beta 1
#1312
| Job | Run time |
|---|---|
| 3m 30s | |
| 9m 19s | |
| 8m 27s | |
| 6m 2s | |
| 9m 5s | |
| 4m 33s | |
| 5m 41s | |
| 4m 32s | |
| 6m 0s | |
| 6m 34s | |
| 1h 3m 43s |