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

Bumps [ergebnis/php-cs-fixer-config](https://github.com/ergebnis/php-cs-fixer-config) from 6.29.0 to 6.30.1.
- [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@6.29.0...6.30.1)

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

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

composer.json

@@ -27,7 +27,7 @@
   "require-dev": {
     "ergebnis/composer-normalize": "^2.42.0",
     "ergebnis/license": "^2.4.0",
-    "ergebnis/php-cs-fixer-config": "^6.29.0",
+    "ergebnis/php-cs-fixer-config": "^6.30.1",
     "infection/infection": "~0.26.6",
     "phpunit/phpunit": "^6.5.14 || ^7.5.20 || ^8.5.19 || ^9.6.16",
     "psalm/plugin-phpunit": "~0.19.0",