Update dependency pestphp/pest to v4

Author: renovate[bot]

composer.json

@@ -22,7 +22,7 @@
         "ergebnis/composer-normalize": "^2.31",
         "nunomaduro/larastan": "^2.6",
         "orchestra/testbench": "^8.5",
-        "pestphp/pest": "^2.6",
+        "pestphp/pest": "^4.0",
         "pestphp/pest-plugin-laravel": "^2.0.0",
         "phpstan/extension-installer": "^1.3",
         "phpstan/phpstan": "^1.10",