build: (deps): Bump flutter_webrtc from 1.3.0 to 1.3.1

Bumps [flutter_webrtc](https://github.com/cloudwebrtc/flutter-webrtc) from 1.3.0 to 1.3.1.
- [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/v1.3.0...v1.3.1)

---
updated-dependencies:
- dependency-name: flutter_webrtc
  dependency-version: 1.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pubspec.yaml

@@ -40,7 +40,7 @@ dependencies:
   flutter_shortcuts_new: ^2.0.0
   flutter_vodozemac: ^0.5.0
   flutter_web_auth_2: ^5.0.1
-  flutter_webrtc: ^1.3.0
+  flutter_webrtc: ^1.3.1
   geolocator: ^14.0.2
   go_router: ^17.1.0
   handy_window: ^0.4.0