refactor(bridge): remove SonoraExperimental from bridge API and regenerate FRB

Remove SonoraExperimental variant from BridgeIosVoiceProcessingMode
and collapse all match arms in the bridge config builder. Regenerate
flutter_rust_bridge bindings and update Podfile.lock.

apps/chanora_flutter/lib/src/rust/api.dart

@@ -1339,11 +1339,8 @@ sealed class BridgeEvent with _$BridgeEvent {
 
 /// Bridge iOS voice-processing mode.
 enum BridgeIosVoiceProcessingMode {
-  /// Shipping VPIO path.
+  /// Apple VoiceProcessingIO path.
   platformVoiceProcessing,
-
-  /// Experimental Sonora path.
-  sonoraExperimental,
 }
 
 @freezed