chore(deps-dev): bump phpmd/phpmd from 2.11.1 to 2.13.0

Bumps [phpmd/phpmd](https://github.com/phpmd/phpmd) from 2.11.1 to 2.13.0.
- [Release notes](https://github.com/phpmd/phpmd/releases)
- [Changelog](https://github.com/phpmd/phpmd/blob/master/CHANGELOG)
- [Commits](phpmd/phpmd@2.11.1...2.13.0)

---
updated-dependencies:
- dependency-name: phpmd/phpmd
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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