refactor: finfo_close automatically freed in PHP 8.5

Author: ddevsr

system/Files/File.php

@@ -135,7 +135,10 @@ public function getMimeType(): string
 
         $finfo    = finfo_open(FILEINFO_MIME_TYPE);
         $mimeType = finfo_file($finfo, $this->getRealPath() ?: $this->__toString());
-        finfo_close($finfo);
+
+        if(PHP_VERSION_ID < 80500){
+            finfo_close($finfo);
+        }
 
         return $mimeType;
     }