added old phpcs versions for PHP 5.3 support

Author: ddrv

composer.json

@@ -17,7 +17,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.5 || ^8.5 || 9.3",
-        "squizlabs/php_codesniffer": "^3.5"
+        "squizlabs/php_codesniffer": "^2.9 || ^3.5"
     },
     "suggest": {
         "ext-fileinfo": "Mime-Type detecting"