[ver1.2.4] update README.md

Author: samu1oto

README.md

@@ -18,8 +18,8 @@ A lightweight & cross-platform SSH/SFTP client built with Flutter.
 ### 下载
 | 平台 | 下载 | 备注 |
 |------|------|------|
-| Android | [APK](https://github.com/RWPteam/ConnSSH/releases/download/1.2.3/ConnSSH_1.2.3.apk) | arm64 |
-| Windows | [exe](https://github.com/RWPteam/ConnSSH/releases/download/1.2.3/ConnSSH.1.2.3.Installer.exe) | 仅支持64位设备 |
+| Android | [APK](https://github.com/RWPteam/ConnSSH/releases/download/1.2.4/ConnSSH_1.2.4.apk) | arm64 |
+| Windows | [exe](https://github.com/RWPteam/ConnSSH/releases/download/1.2.4/ConnSSH.1.2.4.Installer.exe) | 仅支持64位设备 |
 | OHOS | [AppGallery](https://appgallery.huawei.com/app/detail?id=com.samuioto.connecter&channelId=SHARE&source=appshare) | 已上架至华为应用市场，欢迎体验