Chore(deps-dev): Update php-cs-fixer/shim requirement

Updates the requirements on [php-cs-fixer/shim](https://github.com/PHP-CS-Fixer/shim) to permit the latest version.
- [Commits](https://github.com/PHP-CS-Fixer/shim/compare/v3.48.0...v3.51.0)

---
updated-dependencies:
- dependency-name: php-cs-fixer/shim
  dependency-type: direct:development
...

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

composer.json

@@ -4,7 +4,7 @@
 		"nextcloud/coding-standard": "^1.0",
 		"squizlabs/php_codesniffer": "^3",
 		"phan/phan": "^5",
-		"php-cs-fixer/shim": "3.48.0",
+		"php-cs-fixer/shim": "3.51.0",
 		"guzzlehttp/guzzle": "^7",
 		"staabm/annotate-pull-request-from-checkstyle": "^1.1.0"
 	},