update 更新 jdk 版本说明 暂不支持 jdk17

README.md

@@ -8,7 +8,6 @@
 [![Spring Boot](https://img.shields.io/badge/Spring%20Boot-2.5-blue.svg)]()
 [![JDK-8+](https://img.shields.io/badge/JDK-8-green.svg)]()
 [![JDK-11](https://img.shields.io/badge/JDK-11-green.svg)]()
-[![JDK-17](https://img.shields.io/badge/JDK-17-green.svg)]()
 
 > RuoYi-Vue-Plus 是基于 RuoYi-Vue 针对 `分布式集群` 场景升级(不兼容原框架)