fix: 修复视频播放倍速调整后统计时长错误的问题

client/src/modules/viewer/components/player/chapterPlayer.vue

@@ -258,9 +258,7 @@ export default {
       }
       // 默认增加时间
       this.progress.pt = this.progress.pt || 20
-      // 播放倍速
-      const speed = this.player._originalPlaybackRate || 1
-      this.progress.pt += 1 * speed
+      this.progress.pt++
     }
   },
   beforeMount() {