Update Twig to version 3. (#122)

Author: greylabel

composer.json

@@ -16,7 +16,7 @@
         "php": ">=8.1",
         "ext-json": "*",
         "react/http": "^0.8.3",
-        "twig/twig": "^2.12"
+        "twig/twig": "^v3.7.1"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.38.0"