Bump pmd.version from 6.51.0 to 6.52.0 (#319)

Bumps `pmd.version` from 6.51.0 to 6.52.0.

Updates `pmd-core` from 6.51.0 to 6.52.0
- [Release notes](https://github.com/pmd/pmd/releases)
- [Changelog](https://github.com/pmd/pmd/blob/master/docs/render_release_notes.rb)
- [Commits](pmd/pmd@pmd_releases/6.51.0...pmd_releases/6.52.0)

Updates `pmd-java` from 6.51.0 to 6.52.0
- [Release notes](https://github.com/pmd/pmd/releases)
- [Changelog](https://github.com/pmd/pmd/blob/master/docs/render_release_notes.rb)
- [Commits](pmd/pmd@pmd_releases/6.51.0...pmd_releases/6.52.0)

---
updated-dependencies:
- dependency-name: net.sourceforge.pmd:pmd-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: net.sourceforge.pmd:pmd-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -57,7 +57,7 @@
         <mockito.version>4.0.0</mockito.version>
         <powermock.version>2.0.9</powermock.version>
         <jacoco.version>0.8.8</jacoco.version>
-        <pmd.version>6.51.0</pmd.version>
+        <pmd.version>6.52.0</pmd.version>
         <maven.surefire.version>2.22.2</maven.surefire.version>
     </properties>