composer(deps-dev): update squizlabs/php_codesniffer requirement

Updates the requirements on [squizlabs/php_codesniffer](https://github.com/squizlabs/PHP_CodeSniffer) to permit the latest version.
- [Release notes](https://github.com/squizlabs/PHP_CodeSniffer/releases)
- [Commits](squizlabs/PHP_CodeSniffer@3.5.8...3.6.2)

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

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

composer.json

@@ -26,7 +26,7 @@
         "phpstan/phpstan": "^0.12.68",
         "phpunit/phpunit": "^9.5.1",
         "roave/security-advisories": "dev-master",
-        "squizlabs/php_codesniffer": "^3.5.8"
+        "squizlabs/php_codesniffer": "^3.6.2"
     },
     "config": {
         "preferred-install": "dist",