Bump maven-pmd-plugin from 3.17.0 to 3.18.0

Bumps [maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.17.0 to 3.18.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](apache/maven-pmd-plugin@maven-pmd-plugin-3.17.0...maven-pmd-plugin-3.18.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -291,7 +291,7 @@ limitations under the License.
     <commons.javadoc.version>3.4.1</commons.javadoc.version>
     <commons.surefire-report.version>3.0.0-M7</commons.surefire-report.version>
     <commons.animal-sniffer.version>1.22</commons.animal-sniffer.version>
-    <commons.pmd.version>3.17.0</commons.pmd.version>
+    <commons.pmd.version>3.18.0</commons.pmd.version>
     <commons.pmd-impl.version>6.47.0</commons.pmd-impl.version>
     <japicmp.skip>false</japicmp.skip>
     <jacoco.skip>false</jacoco.skip>