feat: 评测报告，音频回放增加'm4a'文件类型

src/subpages/colexiu-report/header/index.tsx

@@ -88,7 +88,7 @@ export default defineComponent({
     }
     const mediaType = computed(() => {
       const subfix = (record.value?.videoFilePath || '').split('.').pop()
-      if (subfix === 'wav' || subfix === 'mp3') {
+      if (subfix === 'wav' || subfix === 'mp3'|| subfix === 'm4a') {
         return 'audio'
       }
       return 'video'