Merge branch 'renovate/maven-checkstyle-plugin.version' into 'main'

Update dependency org.apache.maven.plugins:maven-checkstyle-plugin to v3.2.1

See merge request !93

pom.xml

@@ -80,7 +80,7 @@
         <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>3.0.0-M7</maven-surefire-plugin.version>
         <maven-failsafe-plugin.version>3.0.0-M7</maven-failsafe-plugin.version>
-        <maven-checkstyle-plugin.version>3.2.0</maven-checkstyle-plugin.version>
+        <maven-checkstyle-plugin.version>3.2.1</maven-checkstyle-plugin.version>
         <maven-assembly-plugin.version>3.4.2</maven-assembly-plugin.version>
         <maven-javadoc-plugin.version>3.4.1</maven-javadoc-plugin.version>