Bump org.apache.maven.plugins:maven-pmd-plugin from 3.21.2 to 3.22.0

Bumps [org.apache.maven.plugins:maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.21.2 to 3.22.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](https://github.com/apache/maven-pmd-plugin/compare/maven-pmd-plugin-3.21.2...maven-pmd-plugin-3.22.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-pmd-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 51b0ed1..f295021 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,7 +59,7 @@
     <mavenPluginPluginVersion>3.12.0</mavenPluginPluginVersion>
     <mavenChangesVersion>2.12.1</mavenChangesVersion>
     <mavenJavadocPluginVersion>3.6.3</mavenJavadocPluginVersion>
-    <mavenPmdPluginVersion>3.21.2</mavenPmdPluginVersion>
+    <mavenPmdPluginVersion>3.22.0</mavenPmdPluginVersion>
     <!-- Used to generate download page for RAT during site builds, please adapt versions manually BEFORE doing a release -->
     <!-- START - adapat manually before doing a release -->
     <previousRatVersion>0.17</previousRatVersion>