Bump ergebnis/phpstan-rules from 1.0.0 to 2.0.0

Bumps [ergebnis/phpstan-rules](https://github.com/ergebnis/phpstan-rules) from 1.0.0 to 2.0.0.
- [Release notes](https://github.com/ergebnis/phpstan-rules/releases)
- [Changelog](https://github.com/ergebnis/phpstan-rules/blob/main/CHANGELOG.md)
- [Commits](ergebnis/phpstan-rules@1.0.0...2.0.0)

---
updated-dependencies:
- dependency-name: ergebnis/phpstan-rules
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

composer.json

@@ -10,7 +10,7 @@
     ],
     "require": {
         "php": "^8",
-        "ergebnis/phpstan-rules": "^1.0",
+        "ergebnis/phpstan-rules": "^2.0",
         "jangregor/phpstan-prophecy": "^1.0",
         "pepakriz/phpstan-exception-rules": "^0.12.0",
         "phpstan/phpstan-deprecation-rules": "^1.1",