Merge pull request #30 from apache/dependabot/maven/org.apache.maven.…

…plugins-maven-pmd-plugin-3.13.0

Bump maven-pmd-plugin from 3.7 to 3.13.0, https://issues.apache.org/jira/projects/JEXL/issues/JEXL-337

pom.xml

@@ -299,7 +299,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.7</version>
+                <version>3.13.0</version>
                 <configuration>
                     <targetJdk>${maven.compiler.target}</targetJdk>
                     <excludes>