[video_player] Its example crashes on Tizen 9.0

[seungsoo47]

• Environment
  : Device - RPI5
  : Build - tizen-9.0-unified_20241125.125444_tizen-headed-aarch64

1. Video_player's example is sometimes crashed.

2. I saw another error log in ConsoleMessage:

[E] [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(player_set_playback_rate failed, Function not implemented, null, null)
#0      TizenVideoPlayerApi.setPlaybackSpeed (package:video_player_tizen/src/messages.g.dart:416:7)
<asynchronous suspension>
[E] #1      VideoPlayerController._applyPlaybackSpeed (package:video_player/video_player.dart:633:5)
<asynchronous suspension>
#2      VideoPlayerController._applyPlayPause (package:video_player/video_player.dart:607:7)
<asynchronous suspension>
#3      VideoPlayerController.play (package:video_player/video_player.dart:558:5)
<asynchronous suspension>