docs: 📝 `element-plus` 版本升级最新版本

Former-commit-id: 8f63e72f

README.md

 <p align="center">
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     <img src="https://img.shields.io/badge/Vite-4.3.5-green.svg"/>
-    <img src="https://img.shields.io/badge/Element Plus-2.3.1-blue.svg"/>
+    <img src="https://img.shields.io/badge/Element Plus-2.3.4-blue.svg"/>
     <img src="https://img.shields.io/badge/license-MIT-green.svg"/>
     <a href="https://gitee.com/youlaiorg" target="_blank">
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