Bump twig/twig from 2.16.1 to 3.21.1

Bumps [twig/twig](https://github.com/twigphp/Twig) from 2.16.1 to 3.21.1.
- [Changelog](https://github.com/twigphp/Twig/blob/3.x/CHANGELOG)
- [Commits](twigphp/Twig@v2.16.1...v3.21.1)

---
updated-dependencies:
- dependency-name: twig/twig
  dependency-version: 3.21.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

composer.json

@@ -23,7 +23,7 @@
         "symfony/finder": "^5.4",
         "symfony/http-client": "^5.4",
         "symfony/process": "^5.4",
-        "twig/twig": "^2.12",
+        "twig/twig": "^3.21",
         "webmozart/assert": "^1.11"
     },
     "autoload": {