Update nyholm/psr7-server requirement from ^1.0.1 to ^1.0.2
Update nyholm/psr7-server requirement from ^1.0.1 to ^1.0.2

Updates the requirements on [nyholm/psr7-server](https://github.com/Nyholm/psr7-server) to permit the latest version.
- [Release notes](https://github.com/Nyholm/psr7-server/releases)
- [Changelog](https://github.com/Nyholm/psr7-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Nyholm/psr7-server/compare/1.0.1...1.0.2)

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