Bump twig/twig from 3.14.0 to 3.15.0

Bumps [twig/twig](https://github.com/twigphp/Twig) from 3.14.0 to 3.15.0.
- [Changelog](https://github.com/twigphp/Twig/blob/3.x/CHANGELOG)
- [Commits](twigphp/Twig@v3.14.0...v3.15.0)

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

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