Update dependency org.apache.maven.plugins:maven-pmd-plugin to v3.28.0

Author: renovate[bot]

pom.xml

@@ -185,7 +185,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.21.2</version>
+                <version>3.28.0</version>
                 <configuration>
                     <includeTests>true</includeTests>
                     <printFailingErrors>true</printFailingErrors>