Bump symfony/browser-kit from 4.2.8 to 4.2.9
Bump symfony/browser-kit from 4.2.8 to 4.2.9

Bumps [symfony/browser-kit](https://github.com/symfony/browser-kit) from 4.2.8 to 4.2.9.
- [Release notes](https://github.com/symfony/browser-kit/releases)
- [Changelog](https://github.com/symfony/browser-kit/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/browser-kit/compare/v4.2.8...v4.2.9)
alcohol/paste.robbast.nl,alcohol/paste.robbast.nl,alcohol/paste.robbast.nl,alcohol/sf-minimal-demo