Bump pmd.version from 7.7.0 to 7.9.0

Bumps `pmd.version` from 7.7.0 to 7.9.0.

Updates `net.sourceforge.pmd:pmd-core` from 7.7.0 to 7.9.0
- [Release notes](https://github.com/pmd/pmd/releases)
- [Changelog](https://github.com/pmd/pmd/blob/main/docs/render_release_notes.rb)
- [Commits](pmd/pmd@pmd_releases/7.7.0...pmd_releases/7.9.0)

Updates `net.sourceforge.pmd:pmd-java` from 7.7.0 to 7.9.0
- [Release notes](https://github.com/pmd/pmd/releases)
- [Changelog](https://github.com/pmd/pmd/blob/main/docs/render_release_notes.rb)
- [Commits](pmd/pmd@pmd_releases/7.7.0...pmd_releases/7.9.0)

---
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
...

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

pom.xml

@@ -27,7 +27,7 @@
 
         <checkstyle.version>10.20.1</checkstyle.version>
         <spotbugs.version>4.8.6</spotbugs.version>
-        <pmd.version>7.7.0</pmd.version>
+        <pmd.version>7.9.0</pmd.version>
         <dependencycheck.version>10.0.4</dependencycheck.version>
     </properties>