composer: bump ergebnis/php-cs-fixer-config from 6.59.0 to 6.60.2 (#30)

Bumps [ergebnis/php-cs-fixer-config](https://github.com/ergebnis/php-cs-fixer-config) from 6.59.0 to 6.60.2.
- [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...6.60.2)

---
updated-dependencies:
- dependency-name: ergebnis/php-cs-fixer-config
  dependency-version: 6.60.2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -26,7 +26,7 @@
         "goetas-webservices/xsd2php": "^0.4",
         "friendsofphp/php-cs-fixer": "^3.92",
         "ergebnis/composer-normalize": "^2.0",
-        "ergebnis/php-cs-fixer-config": "^6.59",
+        "ergebnis/php-cs-fixer-config": "^6.60",
         "rector/rector": "^0.15"
     },
     "config": {