Bump log4j2.version from 2.21.0 to 2.21.1

Bumps `log4j2.version` from 2.21.0 to 2.21.1.

Updates `org.apache.logging.log4j:log4j-core` from 2.21.0 to 2.21.1

Updates `org.apache.logging.log4j:log4j-api` from 2.21.0 to 2.21.1

Updates `org.apache.logging.log4j:log4j-slf4j-impl` from 2.21.0 to 2.21.1

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-slf4j-impl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

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>