Update laminas/laminas-diactoros requirement from ^2.0 to ^2.3
Update laminas/laminas-diactoros requirement from ^2.0 to ^2.3

Updates the requirements on [laminas/laminas-diactoros](https://github.com/laminas/laminas-diactoros) to permit the latest version.
- [Release notes](https://github.com/laminas/laminas-diactoros/releases)
- [Changelog](https://github.com/laminas/laminas-diactoros/blob/master/CHANGELOG.md)
- [Commits](https://github.com/laminas/laminas-diactoros/compare/2.0.0...2.3.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
slimphp/Slim-Http