bump to 4.1.1

CHANGELOG.md

+# 4.1.1
+* 重构Android app_id处理
+
 # 4.1.0
 * 修复冷启动问题
 * iOS端代码清理

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: 4.1.0
+version: 4.1.1
 homepage: https://github.com/OpenFlutter/fluwx
 
 environment: