build: Disable webrtc on linux again

pubspec.yaml

@@ -149,6 +149,8 @@ msix_config:
   install_certificate: false
 
 dependency_overrides:
+  flutter_webrtc:
+    git: https://github.com/krille-chan/flutter-webrtc.git
   geolocator_android:
     hosted:
       name: geolocator_android
@@ -165,4 +167,4 @@ dependency_overrides:
     git:
       url: https://github.com/chandrabezzo/wakelock.git
       ref: main
-      path: wakelock_windows/
+      path: wakelock_windows/