fix analysis issues

Signed-off-by: xsahil03x <[email protected]>

packages/stream_chat/lib/src/core/api/requests.dart

@@ -40,7 +40,7 @@ class SortOption<T> {
   final int direction;
 
   /// Sorting field Comparator required for offline sorting
-  @JsonKey(ignore: true)
+  @JsonKey(includeToJson: false, includeFromJson: false)
   final Comparator<T>? comparator;
 
   /// Serialize model to json

packages/stream_chat/lib/src/core/models/attachment_file.dart

@@ -52,7 +52,7 @@ class AttachmentFile {
 
   /// Byte data for this file. Particularly useful if you want to manipulate
   /// its data or easily upload to somewhere else.
-  @JsonKey(ignore: true)
+  @JsonKey(includeToJson: false, includeFromJson: false)
   final Uint8List? bytes;
 
   /// The file size in bytes.