Update dependency org.apache.maven.plugins:maven-checkstyle-plugin to v3.3.1

Author: renovate[bot]

pom.xml

@@ -439,7 +439,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.3.1</version>
                 <configuration>
                     <configLocation>checkstyle.xml</configLocation>
                     <includeTestSourceDirectory>true</includeTestSourceDirectory>