add rector/rector as dev dependency

Author: rizqyhi

composer.json

@@ -70,8 +70,9 @@
     },
     "require-dev": {
         "mockery/mockery": "~1.3",
-        "phpunit/phpunit": "~9.6",
         "phpspec/prophecy-phpunit": "~2.0",
+        "phpunit/phpunit": "~9.6",
+        "rector/rector": "^2.1",
         "symfony/var-dumper": "~6.4"
     },
     "autoload": {