升级log4j2到安全版本，防止漏洞风险

pom.xml

@@ -40,7 +40,7 @@
         <common-pool.version>2.10.0</common-pool.version>
         <commons-collections.version>3.2.2</commons-collections.version>
         <transmittable-thread-local.version>2.12.2</transmittable-thread-local.version>
-        <log4j2.version>2.15.0</log4j2.version>
+        <log4j2.version>2.16.0</log4j2.version>
     </properties>
 
     <!-- 依赖声明 -->