Update squizlabs/php_codesniffer requirement from ^3.9 to ^3.9 || ^4.0

Updates the requirements on [squizlabs/php_codesniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer) to permit the latest version.
- [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@3.9.0...4.0.0)

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

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

Author: dependabot[bot]

composer.json

@@ -11,7 +11,7 @@
   "require-dev": {
     "phpunit/phpunit": "^11.0",
     "phpstan/phpstan": "^1.12",
-    "squizlabs/php_codesniffer": "^3.9"
+    "squizlabs/php_codesniffer": "^3.9 || ^4.0"
   },
   "autoload": {
     "psr-4": {