Bump phpstan/phpstan from 1.12.6 to 2.0.4

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 1.12.6 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@1.12.6...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>

Author: dependabot[bot]

composer.json

@@ -23,7 +23,7 @@
   "require-dev": {
     "phpunit/phpunit": "^10.4",
     "infection/infection": "^0.27 || ^0.28 || ^0.29",
-    "phpstan/phpstan": "^1.10",
+    "phpstan/phpstan": "^1.10 || ^2.0",
     "webthinx/codestyle": "dev-main"
   },
   "suggest": {