Merge pull request #280 from apache/dependabot/maven/log4j2.version-2.21.1

Bump log4j2.version from 2.21.0 to 2.21.1
diff --git a/pom.xml b/pom.xml
index 631c637..0f990bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
         <struts2.version>6.3.0.1</struts2.version>
-        <log4j2.version>2.21.0</log4j2.version>
+        <log4j2.version>2.21.1</log4j2.version>
         <jetty-plugin.version>9.4.46.v20220331</jetty-plugin.version>
         <maven.javadoc.skip>true</maven.javadoc.skip>
         <jackson.version>2.14.1</jackson.version>