Update phpstan/phpstan requirement from ^1.12 to ^2.0

Updates the requirements on [phpstan/phpstan](https://github.com/phpstan/phpstan) to permit the latest version.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.0.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.12.0...2.0.1)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -27,7 +27,7 @@
         "php": "^8.1",
         "laravel/pint": "^1.0",
         "pestphp/pest": "^2.20",
-        "phpstan/phpstan": "^1.12",
+        "phpstan/phpstan": "^2.0",
         "spatie/ray": "^1.28"
     },
     "autoload": {