Bump symfony/security from 3.4.47 to 3.4.49 in /Hypercube (#123)

Bumps [symfony/security](https://github.com/symfony/security) from 3.4.47 to 3.4.49.
- [Release notes](https://github.com/symfony/security/releases)
- [Changelog](https://github.com/symfony/security/blob/4.4/CHANGELOG.md)
- [Commits](symfony/security@v3.4.47...v3.4.49)

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