Merge pull request #596 from pac4j/renovate/org.apache.maven.plugins-maven-pmd-plugin-3.x

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

Author: renovate[bot]

pom.xml

@@ -270,7 +270,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-pmd-plugin</artifactId>
-        <version>3.27.0</version>
+        <version>3.28.0</version>
         <configuration>
           <includeTests>true</includeTests>
           <printFailingErrors>true</printFailingErrors>