De-downgrade de Dead Code Detector dev dependency

Author: spaze

composer.json

@@ -30,7 +30,7 @@
 		"php-parallel-lint/php-parallel-lint": "^1.2",
 		"php-parallel-lint/php-console-highlighter": "^1.0",
 		"phpstan/phpstan-deprecation-rules": "^1.2 || ^2.0",
-		"shipmonk/dead-code-detector": "^0.12",
+		"shipmonk/dead-code-detector": "^0.13.2",
 		"spaze/coding-standard": "^1.8"
 	},
 	"autoload": {