Bump twig/twig from 3.5.1 to 3.15.0

Bumps [twig/twig](https://github.com/twigphp/Twig) from 3.5.1 to 3.15.0.
- [Changelog](https://github.com/twigphp/Twig/blob/3.x/CHANGELOG)
- [Commits](twigphp/Twig@v3.5.1...v3.15.0)

---
updated-dependencies:
- dependency-name: twig/twig
  dependency-type: indirect
...

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