composer: bump ergebnis/php-cs-fixer-config from 6.56.0 to 6.56.1

Bumps [ergebnis/php-cs-fixer-config](https://github.com/ergebnis/php-cs-fixer-config) from 6.56.0 to 6.56.1.
- [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@6.56.0...6.56.1)

---
updated-dependencies:
- dependency-name: ergebnis/php-cs-fixer-config
  dependency-version: 6.56.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]