修复War部署无法正常shutdown,ehcache内存泄漏

Signed-off-by: zhanliquan <zhanliquanit@foxmail.com>

ruoyi-framework/src/main/java/com/ruoyi/framework/manager/ShutdownManager.java

 package com.ruoyi.framework.manager;
 
 import com.ruoyi.framework.shiro.web.session.SpringSessionValidationScheduler;
+import net.sf.ehcache.CacheManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -25,6 +26,7 @@ public class ShutdownManager
     {
         shutdownSpringSessionValidationScheduler();
         shutdownAsyncManager();
+        CacheManager.getCacheManager("ruoyi").shutdown();
     }
 
     /**