Update composer scripts.

No need to specify --standard in phpcs commands since phpcs.xml.dist exists.

composer.json

@@ -76,8 +76,8 @@
             "@cs-check",
             "@test"
         ],
-        "cs-check": "phpcs --colors -p --standard=vendor/cakephp/cakephp-codesniffer/CakePHP ./src ./tests",
-        "cs-fix": "phpcbf --colors --standard=vendor/cakephp/cakephp-codesniffer/CakePHP ./src ./tests",
+        "cs-check": "phpcs --colors -p ./src ./tests",
+        "cs-fix": "phpcbf --colors ./src ./tests",
         "test": "phpunit --colors=always"
     }
 }