Upgraded PMD version to 6.6.0
<surefire.plugin.version>2.22.0</surefire.plugin.version>
<!-- See https://pmd.github.io/ for available latest version -->
- <pmd.version>6.5.0</pmd.version>
+ <pmd.version>6.6.0</pmd.version>
</properties>
<profiles>
