fix: specifying ticket file attachment disk

`attachments` is not the name of a disk, but `attachment-files` is. Also remove the path prefix since this disk only stores attachment files.

Regression from HDInnovations#4497.

Author: Roardom

app/Http/Livewire/AttachmentUpload.php

@@ -53,7 +53,7 @@ final public function updatedAttachment(): void
 
         $fileName = uniqid('', true).'.'.$this->attachment->getClientOriginalExtension();
 
-        $this->attachment->storeAs('attachments', $fileName, 'attachments');
+        $this->attachment->storeAs('', $fileName, 'attachment-files');
 
         $attachment = new TicketAttachment();
         $attachment->user_id = $this->user->id;