composer(deps-dev): bump ergebnis/php-cs-fixer-config

Bumps [ergebnis/php-cs-fixer-config](https://github.com/ergebnis/php-cs-fixer-config) from 3.4.0 to 4.0.0.
- [Release notes](https://github.com/ergebnis/php-cs-fixer-config/releases)
- [Changelog](https://github.com/ergebnis/php-cs-fixer-config/blob/main/CHANGELOG.md)
- [Commits](ergebnis/php-cs-fixer-config@3.4.0...4.0.0)

---
updated-dependencies:
- dependency-name: ergebnis/php-cs-fixer-config
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

composer.json

@@ -21,7 +21,7 @@
     "ergebnis/composer-normalize": "^2.23.0",
     "ergebnis/data-provider": "^1.0.0",
     "ergebnis/license": "^1.2.0",
-    "ergebnis/php-cs-fixer-config": "~3.4.0",
+    "ergebnis/php-cs-fixer-config": "~4.0.0",
     "infection/infection": "~0.26.1",
     "phpunit/phpunit": "^9.5.11",
     "psalm/plugin-phpunit": "~0.16.1",