腾讯云视频接口请求限制bugfix

themis-business/src/main/java/com/qmth/themis/business/constant/SystemConstant.java

@@ -219,7 +219,7 @@ public class SystemConstant {
 
     public static final int MAX_EXAM_STATUS_COUNT = 20;
 
-    public static final int MAX_TENCENT_VIDEO_STREAM_ID_COUNT = 30;
+    public static final int MAX_TENCENT_VIDEO_STREAM_ID_COUNT = 20;
 
     public static final String EXCEL_PREFIX = ".xlsx";