frigate-hass-card: `webrtc-card` provider incorrectly requires `cameraEntity` for engine detection

Checklist:

• I updated to the latest version available
• I cleared the cache of my browser

Release with the issue:

Last working release (if known): 4.x

Browser and Operating System:

Description of problem:

Javascript errors shown in the web inspector (if applicable):

Could not determine suitable engine for camera. Check troubleshooting.
{
  "hide": false,
  "dependencies": {
    "all_cameras": false,
    "cameras": []
  },
  "triggers": {
    "motion": false,
    "occupancy": true,
    "entities": []
  },
  "engine": "auto",
  "frigate": {
    "client_id": "frigate"
  },
  "motioneye": {
    "images": {
      "directory_pattern": "%Y-%m-%d",
      "file_pattern": "%H-%M-%S"
    },
    "movies": {
      "directory_pattern": "%Y-%m-%d",
      "file_pattern": "%H-%M-%S"
    }
  },
  "live_provider": "webrtc-card",
  "image": {
    "refresh_seconds": 1
  },
  "icon": "mdi:balcony",
  "title": "Taras",
  "id": "1",
  "webrtc_card": {
    "entity": "camera.taras_hd"
  }
}

Additional information: