Bump org.apache.maven.plugins:maven-checkstyle-plugin (#560)

pom.xml

@@ -104,7 +104,7 @@
     <localizer-maven-plugin.version>1.31</localizer-maven-plugin.version>
     <maven-antrun-plugin.version>3.1.0</maven-antrun-plugin.version>
     <maven-assembly-plugin.version>3.7.1</maven-assembly-plugin.version>
-    <maven-checkstyle-plugin.version>3.3.1</maven-checkstyle-plugin.version>
+    <maven-checkstyle-plugin.version>3.4.0</maven-checkstyle-plugin.version>
     <maven-clean-plugin.version>3.3.2</maven-clean-plugin.version>
     <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
     <maven-dependency-plugin.version>3.6.1</maven-dependency-plugin.version>