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

Bumps [ergebnis/php-cs-fixer-config](https://github.com/ergebnis/php-cs-fixer-config) from 6.59.0 to 6.60.0.
- [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@6.59.0...6.60.0)

---
updated-dependencies:
- dependency-name: ergebnis/php-cs-fixer-config
  dependency-version: 6.60.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

composer.json

@@ -30,7 +30,7 @@
   "require-dev": {
     "ergebnis/composer-normalize": "^2.49.0",
     "ergebnis/license": "^2.7.0",
-    "ergebnis/php-cs-fixer-config": "^6.59.0",
+    "ergebnis/php-cs-fixer-config": "^6.60.0",
     "fakerphp/faker": "~1.20.0",
     "phpstan/extension-installer": "^1.4.3",
     "phpstan/phpstan": "^1.12.11",