Build(deps): bump kubawerlos/php-cs-fixer-config in /dev-tools

Bumps [kubawerlos/php-cs-fixer-config](https://github.com/kubawerlos/php-cs-fixer-config) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/kubawerlos/php-cs-fixer-config/releases)
- [Commits](kubawerlos/php-cs-fixer-config@v2.0.0...v2.1.0)

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

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

dev-tools/composer.json

@@ -4,7 +4,7 @@
         "ergebnis/composer-normalize": "^2.15.0",
         "friendsofphp/php-cs-fixer": "^3.0.2",
         "kubawerlos/composer-smaller-lock": "^0.1.4",
-        "kubawerlos/php-cs-fixer-config": "^2.0.0",
+        "kubawerlos/php-cs-fixer-config": "^2.1.0",
         "kubawerlos/php-cs-fixer-custom-fixers": "^2.5.0",
         "maglnet/composer-require-checker": "^3.3.0",
         "mi-schi/phpmd-extension": "^4.3.0",