Merge pull request #43 from michalsn/dependabot/composer/rector/rector-0.18.4

Update rector/rector requirement from 0.18.2 to 0.18.4

Author: michalsn

composer.json

@@ -18,7 +18,7 @@
     "require-dev": {
         "codeigniter4/devkit": "^1.0",
         "codeigniter4/framework": "^4.4",
-        "rector/rector": "0.18.2"
+        "rector/rector": "0.18.4"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,