Fixed failing test after drawio default url change

[bookstack] / resources / views / attachments / list.blade.php

<div component="attachments-list">
    @foreach($attachments as $attachment)
        <div class="attachment icon-list">
            <a class="icon-list-item py-xs attachment-{{ $attachment->external ? 'link' : 'file' }}" href="{{ $attachment->getUrl() }}" @if($attachment->external) target="_blank" @endif>
                <span class="icon">@icon($attachment->external ? 'export' : 'file')</span>
                <span>{{ $attachment->name }}</span>
            </a>
        </div>
    @endforeach
</div>