build(deps-dev): update squizlabs/php_codesniffer requirement (#1826)

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/master/CHANGELOG.md)
- [Commits](PHPCSStandards/PHP_CodeSniffer@3.9.0...3.9.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

composer.json

@@ -85,6 +85,6 @@
 		"phpunit/phpunit": "10.5.10",
 		"phpunit/php-code-coverage": "10.1.11",
 		"rector/rector": "0.15.13",
-		"squizlabs/php_codesniffer": "3.9.0"
+		"squizlabs/php_codesniffer": "3.9.1"
 	}
 }