Bump org.apache.maven.plugins:maven-pmd-plugin from 3.21.0 to 3.21.2

Bumps [org.apache.maven.plugins:maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.21.0 to 3.21.2.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](apache/maven-pmd-plugin@maven-pmd-plugin-3.21.0...maven-pmd-plugin-3.21.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -74,7 +74,7 @@
     <version.org.apache.maven.plugins.maven-compiler-plugin>3.10.1</version.org.apache.maven.plugins.maven-compiler-plugin>
     <version.org.apache.maven.plugins.maven-javadoc-plugin>3.6.0</version.org.apache.maven.plugins.maven-javadoc-plugin>
     <version.org.apache.maven.plugins.maven-jxr-plugin>3.3.0</version.org.apache.maven.plugins.maven-jxr-plugin>
-    <version.org.apache.maven.plugins.maven-pmd-plugin>3.21.0</version.org.apache.maven.plugins.maven-pmd-plugin>
+    <version.org.apache.maven.plugins.maven-pmd-plugin>3.21.2</version.org.apache.maven.plugins.maven-pmd-plugin>
     <version.org.apache.maven.plugins.maven-project-info-reports-plugin>3.4.5</version.org.apache.maven.plugins.maven-project-info-reports-plugin>
     <version.org.apache.maven.plugins.maven-surefire-plugin>3.0.0-M7</version.org.apache.maven.plugins.maven-surefire-plugin>
     <version.org.codehaus.mojo.buildnumber-maven-plugin>3.0.0</version.org.codehaus.mojo.buildnumber-maven-plugin>