chore(llc,core,ui): update pubspec and changelogs

packages/stream_chat_flutter_core/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.0.0-beta.2
+
+- Updated `stream_chat` dependency to [`4.0.0-beta.2`](https://pub.dev/packages/stream_chat/changelog).
+
 ## 4.0.0-beta.0
 
 ✅ Added

packages/stream_chat_flutter_core/pubspec.yaml

@@ -1,7 +1,7 @@
 name: stream_chat_flutter_core
 homepage: https://github.com/GetStream/stream-chat-flutter
 description: Stream Chat official Flutter SDK Core. Build your own chat experience using Dart and Flutter.
-version: 4.0.0-beta.0
+version: 4.0.0-beta.2
 repository: https://github.com/GetStream/stream-chat-flutter
 issue_tracker: https://github.com/GetStream/stream-chat-flutter/issues
 
@@ -17,7 +17,7 @@ dependencies:
   freezed_annotation: ^1.0.0
   meta: ^1.3.0
   rxdart: ^0.27.0
-  stream_chat: ^4.0.0-beta.0
+  stream_chat: ^4.0.0-beta.2
 
 dev_dependencies:
   build_runner: ^2.0.1