Bump phpstan/phpstan from 1.12.9 to 2.0.4

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 1.12.9 to 2.0.4.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.1.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.12.9...2.0.4)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -22,7 +22,7 @@
   },
   "require-dev": {
     "helhum/typo3-console": "^6.7 || ^7.1",
-    "phpstan/phpstan": "^1.8",
+    "phpstan/phpstan": "^2.0",
     "phpunit/phpunit": "^9.5",
     "roave/security-advisories": "dev-latest",
     "squizlabs/php_codesniffer": "^3.5",