Upgrade build-tools

Author: adangel

pom.xml

@@ -18,7 +18,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <pmd.version>6.14.0</pmd.version>
     <maven-antrun-plugin.version>1.8</maven-antrun-plugin.version>
-    <pmd.build-tools.version>1.4.0</pmd.build-tools.version>
+    <pmd.build-tools.version>2</pmd.build-tools.version>
     <checkstyle.version>3.0.0</checkstyle.version>
   </properties>