Bump com.puppycrawl.tools:checkstyle from 13.4.0 to 13.4.1 on Java 21

and up.

Author: garydgregory

pom.xml

@@ -1770,7 +1770,7 @@
         <jdk>[21,)</jdk>
 	  </activation>
       <properties>
-        <commons.checkstyle.version>13.4.0</commons.checkstyle.version>
+        <commons.checkstyle.version>13.4.1</commons.checkstyle.version>
         <argLine>-XX:+EnableDynamicAgentLoading</argLine>
       </properties>
     </profile>

src/changes/changes.xml

@@ -64,6 +64,7 @@ The <action> type attribute can be add,update,fix,remove.
         <!-- UPDATE -->
         <action type="update" dev="sjaranowski" due-to="Slawomir Jaranowski">Bump org.apache.maven.plugins:maven-source-plugin from 3.2.1 to 3.4.0.</action>
         <action type="update" dev="ggregory" due-to="Gary Gregory">Bump net.sourceforge.pmd:pmd-* from 7.23.0 to 7.24.0.</action>
+        <action type="update" dev="ggregory" due-to="Gary Gregory">Bump com.puppycrawl.tools:checkstyle from 13.4.0 to 13.4.1 on Java 21 and up.</action>
       </release>
       <release version="99" date="2026-04-19" description="This is a feature and maintenance release. Java 8 or later is required.">
         <!-- FIX -->