Update phpmd/phpmd requirement from ^2.5 to ^2.7
Update phpmd/phpmd requirement from ^2.5 to ^2.7

Updates the requirements on [phpmd/phpmd](https://github.com/phpmd/phpmd) to permit the latest version.
- [Release notes](https://github.com/phpmd/phpmd/releases)
- [Changelog](https://github.com/phpmd/phpmd/blob/master/CHANGELOG)
- [Commits](https://github.com/phpmd/phpmd/compare/2.5.0...2.7.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
lcobucci/jwt