Bump maven-pmd-plugin from 2.3 to 3.14.0

Bumps [maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 2.3 to 3.14.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](https://github.com/apache/maven-pmd-plugin/compare/maven-pmd-plugin-2.3...maven-pmd-plugin-3.14.0)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 8b6efbd..72233ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -398,7 +398,7 @@
           </plugin>
           <plugin>
             <artifactId>maven-pmd-plugin</artifactId>
-            <version>2.3</version>
+            <version>3.14.0</version>
             <configuration>
               <targetJdk>${maven.compile.target}</targetJdk>
             </configuration>