Bump symfony/http-kernel from 4.4.7 to 4.4.13

Bumps [symfony/http-kernel](https://github.com/symfony/http-kernel) from 4.4.7 to 4.4.13.
- [Release notes](https://github.com/symfony/http-kernel/releases)
- [Changelog](https://github.com/symfony/http-kernel/blob/master/CHANGELOG.md)
- [Commits](symfony/http-kernel@v4.4.7...v4.4.13)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]