chore(llc,core,ui): update pubspec and changelogs (#1333)

packages/stream_chat/CHANGELOG.md

@@ -1,4 +1,4 @@
-## Upcoming
+## 4.6.0
 
 ✅ Added
 

packages/stream_chat/lib/version.dart

@@ -3,4 +3,4 @@ import 'package:stream_chat/src/client/client.dart';
 /// Current package version
 /// Used in [StreamChatClient] to build the `x-stream-client` header
 // ignore: constant_identifier_names
-const PACKAGE_VERSION = '4.5.0';
+const PACKAGE_VERSION = '4.6.0';

packages/stream_chat/pubspec.yaml

@@ -1,7 +1,7 @@
 name: stream_chat
 homepage: https://getstream.io/
 description: The official Dart client for Stream Chat, a service for building chat applications.
-version: 4.5.0
+version: 4.6.0
 repository: https://github.com/GetStream/stream-chat-flutter
 issue_tracker: https://github.com/GetStream/stream-chat-flutter/issues