Merge pull request #121 from joindin/dependabot/composer/squizlabs/php_codesniffer-4.0.0

Author: heiglandreas

composer.json

@@ -50,7 +50,7 @@
     "mockery/mockery": "^1.2",
     "phing/phing": "^2.14",
     "phpunit/phpunit": "^12",
-    "squizlabs/php_codesniffer": "^3.0"
+    "squizlabs/php_codesniffer": "^4.0"
   },
   "config": {
     "sort-packages": true