NDropdown component @update:show method fires twice

[LinYu520312]

TuSimple/naive-ui version (版本)

2.28.2

Vue version (Vue 版本)

3.2.33

Browser and its version (浏览器及其版本)

96.0.4664.110

System and its version (系统及其版本)

Windows 10 Pro

Node version (Node 版本)

Reappearance link (重现链接)

https://codesandbox.io/s/staging-cookies-fehfwp?file=/src/Demo.vue

Reappearance steps (重现步骤)

Introduce the NDropdown component and call the @update:show callback method
引入NDropdown组件，调用@update:show回调方法

Expected results (期望的结果)

@update:show is triggered once when open, and once when closed
@update:show 打开触发一次，关闭触发一次

Actual results (实际的结果)

Open triggers twice, close triggers twice
打开触发两次，关闭触发两次

Remarks (补充说明)