Bump org.apache.maven.plugins:maven-pmd-plugin from 3.21.2 to 3.23.0

Bumps [org.apache.maven.plugins:maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.21.2 to 3.23.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](apache/maven-pmd-plugin@maven-pmd-plugin-3.21.2...maven-pmd-plugin-3.23.0)

---
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>

pom.xml

@@ -22,7 +22,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <rxjava.version>3.1.8</rxjava.version>
         <javadoc.version>3.7.0</javadoc.version>
-        <pmd.version>3.21.2</pmd.version>
+        <pmd.version>3.23.0</pmd.version>
         <project.info.version>3.6.1</project.info.version>
         <jxr.version>3.4.0</jxr.version>
         <taglist.version>3.0.0</taglist.version>