Update @livekit/react-native-webrtc to "^125.0.11"

I was trying to run the example code as-is on ios and got a bunch of @livekit/react-native-webrtc type errors. Turns out there was a new version of package came out last week causing the issue.

Changing the package.json to "@livekit/react-native-webrtc": "^125.0.11" fixed the issue.