Bump slim/slim from 3.7.0 to 3.11.0
Bump slim/slim from 3.7.0 to 3.11.0

Bumps [slim/slim](https://github.com/slimphp/Slim) from 3.7.0 to 3.11.0.
- [Release notes](https://github.com/slimphp/Slim/releases)
- [Commits](https://github.com/slimphp/Slim/compare/3.7.0...3.11.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
ckrack/slim3-boilerplate,ckrack/slim3-boilerplate