fix 处理访客上传人脸问题

Src/Dlhis.Basic/Organization/Services/Implements/GainfoFaceService.cs

@@ -128,6 +128,7 @@ public class GainfoFaceService : IGainfoFaceService
             .SingleAsync();
 
         gainfo.ThrowIfNull("人员信息不存在");
+        (gainfo.Type == GainfoUserTypeEnumType.External).ThrowIfTrue("人员类型有误,禁止操作");
 
         var face = await _faceDbContext.Queryable<GainfoFaceEntity>().Where(x => x.UserCode == gainfo.Code).SingleAsync();
         var taskType = face == null ? DeviceTaskEnumType.Add : DeviceTaskEnumType.Update;