Merge pull request #74 from codeigniter4/dependabot/composer/rector/rector-0.15.13

chore(deps-dev): update rector/rector requirement from 0.15.12 to 0.15.13

Author: samsonasik

composer.json

@@ -39,7 +39,7 @@
     "require-dev": {
         "codeigniter4/framework": "^4.1",
         "icanhazstring/composer-unused": "^0.8.2",
-        "rector/rector": "0.15.12"
+        "rector/rector": "0.15.13"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,