Bump twig/twig from 3.3.8 to 3.4.3

Bumps [twig/twig](https://github.com/twigphp/Twig) from 3.3.8 to 3.4.3.
- [Release notes](https://github.com/twigphp/Twig/releases)
- [Changelog](https://github.com/twigphp/Twig/blob/3.x/CHANGELOG)
- [Commits](twigphp/Twig@v3.3.8...v3.4.3)

---
updated-dependencies:
- dependency-name: twig/twig
  dependency-type: direct:production
...

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Author: dependabot[bot]