chore: composer v2 fix

Author: AidasK

composer.json

@@ -22,9 +22,9 @@
       "php": ">=5.3"
   },
   "require-dev": {
-    "mikey179/vfsStream": "v1.2.0",
+    "mikey179/vfsstream": "v1.2.0",
     "league/phpunit-coverage-listener": "~1.1",
-    "fabpot/php-cs-fixer": "2.2",
+    "fabpot/php-cs-fixer": "~2.2",
     "phpunit/phpunit": "4.*"
   },
   "autoload": {