build: (deps): bump flutter_webrtc from 1.1.0 to 1.2.0

Bumps [flutter_webrtc](https://github.com/cloudwebrtc/flutter-webrtc) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/cloudwebrtc/flutter-webrtc/releases)
- [Changelog](https://github.com/flutter-webrtc/flutter-webrtc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/cloudwebrtc/flutter-webrtc/compare/v1.1.0...v1.2.0)

---
updated-dependencies:
- dependency-name: flutter_webrtc
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pubspec.yaml

@@ -41,7 +41,7 @@ dependencies:
   flutter_shortcuts_new: ^2.0.0
   flutter_vodozemac: ^0.2.2
   flutter_web_auth_2: ^3.1.1 # Version 4 blocked by https://github.com/MixinNetwork/flutter-plugins/issues/379
-  flutter_webrtc: ^1.1.0
+  flutter_webrtc: ^1.2.0
   geolocator: ^14.0.2
   go_router: ^16.2.1
   handy_window: ^0.4.0