Bump symfony/process from 4.2.9 to 4.3.0
Bump symfony/process from 4.2.9 to 4.3.0

Bumps [symfony/process](https://github.com/symfony/process) from 4.2.9 to 4.3.0.
- [Release notes](https://github.com/symfony/process/releases)
- [Changelog](https://github.com/symfony/process/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/process/compare/v4.2.9...v4.3.0)
alcohol/paste.robbast.nl,alcohol/sf-minimal-demo,alcohol/paste.robbast.nl,alcohol/paste.robbast.nl