Bump league/flysystem in /samples/development-frameworks/laravel

Bumps [league/flysystem](https://github.com/thephpleague/flysystem) from 1.0.16 to 1.1.4.
- [Release notes](https://github.com/thephpleague/flysystem/releases)
- [Changelog](https://github.com/thephpleague/flysystem/blob/2.x/CHANGELOG.md)
- [Commits](thephpleague/flysystem@1.0.16...1.1.4)

---
updated-dependencies:
- dependency-name: league/flysystem
  dependency-type: indirect
...

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Author: dependabot[bot]