Apply fixes from StyleCI

Author: StyleCIBot

packages/framework/src/helpers.php

@@ -32,7 +32,7 @@ function unslash(string $string): string
     use Illuminate\Contracts\Support\Arrayable;
     use Symfony\Component\Yaml\Yaml;
 
-    use function function_exists;
+use function function_exists;
     use function array_merge;
     use function str_replace;
     use function implode;