Bump maven-pmd-plugin from 3.15.0 to 3.16.0 (apache#219)

Bumps [maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.15.0 to 3.16.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](apache/maven-pmd-plugin@maven-pmd-plugin-3.15.0...maven-pmd-plugin-3.16.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-pmd-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -171,7 +171,7 @@
     <checkstyle.suppress.file>${basedir}/src/site/resources/checkstyle/checkstyle-suppressions.xml</checkstyle.suppress.file>
     <checkstyle.resourceExcludes>LICENSE.txt, NOTICE.txt, **/maven-archiver/pom.properties</checkstyle.resourceExcludes>
 
-    <commons.pmd.version>3.15.0</commons.pmd.version>
+    <commons.pmd.version>3.16.0</commons.pmd.version>
     <commons.pmd-impl.version>6.42.0</commons.pmd-impl.version>
     <commons.jacoco.version>0.8.7</commons.jacoco.version>
     <commons.spotbugs.version>4.5.3.0</commons.spotbugs.version>