Update redaxo/php-cs-fixer-config requirement from ^1.0 to ^2.12

Updates the requirements on [redaxo/php-cs-fixer-config](https://github.com/redaxo/php-cs-fixer-config) to permit the latest version.
- [Release notes](https://github.com/redaxo/php-cs-fixer-config/releases)
- [Commits](redaxo/php-cs-fixer-config@1.0.0...2.12.0)

---
updated-dependencies:
- dependency-name: redaxo/php-cs-fixer-config
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -25,7 +25,7 @@
         "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan-deprecation-rules": "^2",
         "phpunit/phpunit": "^9 || ^10.5",
-        "redaxo/php-cs-fixer-config": "^1.0"
+        "redaxo/php-cs-fixer-config": "^2.12"
     },
     "autoload": {
         "psr-4": {