Update friendsofphp/php-cs-fixer requirement from 2.16.3 to 2.16.7
Update friendsofphp/php-cs-fixer requirement from 2.16.3 to 2.16.7

Updates the requirements on [friendsofphp/php-cs-fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer) to permit the latest version.
- [Release notes](https://github.com/FriendsOfPHP/PHP-CS-Fixer/releases)
- [Changelog](https://github.com/FriendsOfPHP/PHP-CS-Fixer/blob/v2.16.7/CHANGELOG.md)
- [Commits](https://github.com/FriendsOfPHP/PHP-CS-Fixer/compare/v2.16.3...v2.16.7)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
diablomedia/phpunit-pretty-printer