[Core] Fix Highway up block AppId

Author: Wesley-Young

Lagrange.Core/Internal/Context/HighwayContext.cs

@@ -71,7 +71,7 @@ public async Task<bool> UploadFile(Stream stream, int commandId, ReadOnlyMemory<
                     Uin = _context.Keystore.Uin.ToString(),
                     Command = "PicUp.DataUp",
                     Seq = (uint)sequence,
-                    AppId = (uint)_context.AppInfo.SubAppId,
+                    AppId = (uint)_context.AppInfo.AppId,
                     DataFlag = 16,
                     CommandId = (uint)commandId,
                 };