Update dependency org.apache.maven.plugins:maven-pmd-plugin to v3.26.0

Author: renovate[bot]

pom.xml

@@ -390,7 +390,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.21.2</version>
+                <version>3.26.0</version>
                 <configuration>
                     <skip>false</skip>
                     <failOnViolation>true</failOnViolation>