Bump version.pmd from 6.52.0 to 7.6.0

Bumps `version.pmd` from 6.52.0 to 7.6.0.

Updates `net.sourceforge.pmd:pmd-core` from 6.52.0 to 7.6.0
- [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/6.52.0...pmd_releases/7.6.0)

Updates `net.sourceforge.pmd:pmd-java` from 6.52.0 to 7.6.0
- [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/6.52.0...pmd_releases/7.6.0)

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

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

pom.xml

@@ -15,7 +15,7 @@
         <maven.compiler.target>17</maven.compiler.target>
         <version.junit>1.11.1</version.junit>
         <version.jupiter>5.11.1</version.jupiter>
-        <version.pmd>6.52.0</version.pmd>
+        <version.pmd>7.6.0</version.pmd>
     </properties>
 
     <scm>