bump to 4.4.3

CHANGELOG.md

+# 4.4.3
+* Fix #584 缩略图不显示问题
+
 # 4.4.2
 * 修复iOS回调会与其他插件冲突的问题
 

pubspec.yaml

 name: fluwx
 description: The capability of implementing WeChat SDKs in Flutter. With Fluwx, developers can use WeChatSDK easily, such as sharing, payment, lanuch mini program and etc.
-version: 4.4.2
+version: 4.4.3
 homepage: https://github.com/OpenFlutter/fluwx
 
 environment: