iOS Emulator throwing Auth errors on physical device

### [REQUIRED] Environment info

v11.21.0

**firebase-tools:**

macOS

**Platform:**

macOS/Swift

### [REQUIRED] Test case

```
let settings = Firestore.firestore().settings
settings.host = "192.168.68.109:8080"
settings.isPersistenceEnabled = false
settings.isSSLEnabled = false
Firestore.firestore().settings = settings

realtime = Database.database(url: "http://192.168.68.109:9000/?ns=_project_").reference()
Auth.auth().useEmulator(withHost: "192.168.68.109", port: 9099)
Storage.storage().useEmulator(withHost: "192.168.68.109", port: 9199)
Functions.functions().useEmulator(withHost: "192.168.68.109", port: 5001)
```

### [REQUIRED] Steps to reproduce

- Run emulation server
- Run iOS client on a physical device with those configurations (Swift)
- Authenticate into the emulation server

### [REQUIRED] Expected behavior

- No errors in log

### [REQUIRED] Actual behavior

- This error prints to the console every ~20-30 seconds

` 10.4.0 - [FirebaseDatabase][I-RDB034018] Authentication failed: invalid_token (Unsupported jwt algorithm: none)`

FWIW The authentation server is actually working just fine, but it clogs up the log after a few minutes.