Update squizlabs/php_codesniffer requirement in the stable-updates group

Updates the requirements on [squizlabs/php_codesniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer) to permit the latest version.

Updates `squizlabs/php_codesniffer` to 4.0.0
- [Release notes](https://github.com/PHPCSStandards/PHP_CodeSniffer/releases)
- [Changelog](https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/4.x/CHANGELOG-4.x.md)
- [Commits](PHPCSStandards/PHP_CodeSniffer@3.11.0...4.0.0)

---
updated-dependencies:
- dependency-name: squizlabs/php_codesniffer
  dependency-version: 4.0.0
  dependency-type: direct:development
  dependency-group: stable-updates
...

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

Author: dependabot[bot]

composer.json

@@ -40,7 +40,7 @@
         "phpstan/phpstan-mockery": "^1.1",
         "phpstan/phpstan-phpunit": "^1.1",
         "slevomat/coding-standard": "^8.4",
-        "squizlabs/php_codesniffer": "^3.11",
+        "squizlabs/php_codesniffer": "^4.0",
         "friendsofphp/php-cs-fixer": "^3.65",
         "php-mock/php-mock-phpunit": "^2.12",
         "phpunit/phpunit": "^12.0"