Bump pmd.version from 7.8.0 to 7.9.0

Bumps `pmd.version` from 7.8.0 to 7.9.0.

Updates `net.sourceforge.pmd:pmd-core` from 7.8.0 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/7.8.0...pmd_releases/7.9.0)

Updates `net.sourceforge.pmd:pmd-java` from 7.8.0 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/7.8.0...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] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -26,7 +26,7 @@
     <spotbugs-annotations.version>4.8.6</spotbugs-annotations.version>
     <findsecbugs.version>1.13.0</findsecbugs.version>
     <pmd-plugin.version>3.26.0</pmd-plugin.version>
-    <pmd.version>7.8.0</pmd.version>
+    <pmd.version>7.9.0</pmd.version>
     <checkstyle-plugin.version>3.6.0</checkstyle-plugin.version>
     <checkstyle.version>10.21.0</checkstyle.version>