Update dependency squizlabs/php_codesniffer to v4 (#291)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

composer.json

@@ -32,7 +32,7 @@
         "guzzlehttp/psr7": "^2.7",
         "justinrainbow/json-schema": "^5.1",
         "phpunit/phpunit": "^9.6",
-        "squizlabs/php_codesniffer": "^3.5",
+        "squizlabs/php_codesniffer": "^4.0",
         "symfony/filesystem": "^4.4",
         "symfony/psr-http-message-bridge": "^2.0"
     },