Issue #46: Update Composer requirements.

Author: FlorentTorregrosa

composer.json

@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": ">= 7.4",
-        "friendsofphp/php-cs-fixer": "^3.13.2",
+        "friendsofphp/php-cs-fixer": "^3.18",
         "symfony/yaml": "^3 || ^4 || ^5 || ^6"
     },
     "autoload": {