Bump maven-pmd-plugin from 3.12.0 to 3.13.0 (#44)

Bumps [maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.12.0 to 3.13.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](https://github.com/apache/maven-pmd-plugin/compare/maven-pmd-plugin-3.12.0...maven-pmd-plugin-3.13.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index fa6e672..6dec825 100644
--- a/pom.xml
+++ b/pom.xml
@@ -295,7 +295,7 @@
       </plugin>
       <plugin>
         <artifactId>maven-pmd-plugin</artifactId>
-        <version>3.12.0</version>
+        <version>3.13.0</version>
         <configuration>
           <targetJdk>${maven.compiler.target}</targetJdk>
         </configuration>