Add missing AudioSessionIdChanged stub to android MediaElement (#2992)

Author: ne0rrmatrix

src/CommunityToolkit.Maui.MediaElement/Views/MediaManager.android.cs

@@ -722,6 +722,7 @@ void StopService(in BoundServiceConnection boundServiceConnection)
 
 	#region PlayerListener implementation method stubs
 	public void OnAudioAttributesChanged(AudioAttributes? audioAttributes) { }
+	public void OnAudioSessionIdChanged(int audioSessionId) { }
 	public void OnAvailableCommandsChanged(PlayerCommands? player) { }
 	public void OnCues(CueGroup? cues) { }
 	public void OnDeviceInfoChanged(DeviceInfo? deviceInfo) { }