chore: start preparing for pest 5.x

Author: nunomaduro

composer.json

@@ -14,7 +14,7 @@
     ],
     "license": "MIT",
     "require": {
-        "php": "^8.3",
+        "php": "^8.4",
         "nunomaduro/pokio": "^0.1.1",
         "pestphp/pest-plugin": "^4.0.0",
         "phpstan/phpstan": "^1.12.24|^2.1.31",