Update dependency cego/php-cs-fixer to v2 (#51)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

composer.json

@@ -16,7 +16,7 @@
         }
     },
     "require-dev": {
-        "cego/php-cs-fixer": "1.x.x",
+        "cego/php-cs-fixer": "2.x",
         "phpstan/phpstan": "1.x.x"
     }
 }