Merge pull request #542 from phparkitect/dependabot/composer/friendsofphp/php-cs-fixer-tw-3.91

deps(deps-dev): update friendsofphp/php-cs-fixer requirement from ^3.90 to ^3.91

Author: fain182

composer.json

@@ -34,7 +34,7 @@
         "webmozart/assert": "^1.9"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.90",
+        "friendsofphp/php-cs-fixer": "^3.91",
         "mikey179/vfsstream": "^1.6",
         "phpspec/prophecy": "^1.10",
         "phpspec/prophecy-phpunit": "^2.4",