Add php-cs-fixer as dev requirement, remove php_codesniffer

Author: MrJamesEllis

composer.json

@@ -29,7 +29,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
-        "squizlabs/php_codesniffer": "^3.0",
+        "friendsofphp/php-cs-fixer": "^3",
         "ext-dom" : "*"
     }
 }