Bump maven-pmd-plugin from 3.19.0 to 3.20.0

Author: adangel

pom.xml

@@ -78,7 +78,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
         <pmd.build-tools.version>19</pmd.build-tools.version>
-        <pmd.plugin.version>3.19.0</pmd.plugin.version>
+        <pmd.plugin.version>3.20.0</pmd.plugin.version>
         <pmd.check.version>6.52.0</pmd.check.version>
 
         <jflex-output>${project.build.directory}/generated-sources/jflex</jflex-output>