Bump symfony/css-selector from 4.4.11 to 5.1.5
Bump symfony/css-selector from 4.4.11 to 5.1.5

Bumps [symfony/css-selector](https://github.com/symfony/css-selector) from 4.4.11 to 5.1.5.
- [Release notes](https://github.com/symfony/css-selector/releases)
- [Changelog](https://github.com/symfony/css-selector/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/css-selector/compare/v4.4.11...v5.1.5)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
sonata-project/sandbox,sonata-project/sandbox,sonata-project/sandbox