Bump phpstan/phpstan from 1.12.0 to 2.0.1

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 1.12.0 to 2.0.1.
- [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
  update-type: version-update:semver-major
...

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

composer.json

@@ -12,7 +12,7 @@
     "require-dev": {
         "phpunit/phpunit": "^9.6 || ^10.0 || ^11.0",
         "consolidation/robo": "^4.0 || ^5.0",
-        "phpstan/phpstan": "^1.3.0",
+        "phpstan/phpstan": "^2.0.1",
         "phlak/semver": "^5.0 || ^6.0"
     },
     "suggest": {