Update phpspec/phpspec requirement from 2.0.*@dev to 2.5.*@dev
Update phpspec/phpspec requirement from 2.0.*@dev to 2.5.*@dev

Updates the requirements on [phpspec/phpspec](https://github.com/phpspec/phpspec) to permit the latest version.
- [Release notes](https://github.com/phpspec/phpspec/releases)
- [Changelog](https://github.com/phpspec/phpspec/blob/master/CHANGES-v2.md)
- [Commits](https://github.com/phpspec/phpspec/compare/2.0.0...2.5.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
PurpleBooth/twig-htmlstrip,PurpleBooth/twig-htmlstrip