bump to 3.9.0+1

CHANGELOG.md

+# 3.9.0+1
+* Merge #485
+
 # 3.9.0
 * 支持微信卡包
 

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: 3.9.0
+version: 3.9.0+1
 homepage: https://github.com/JarvanMo/fluwx
 
 environment: