Update AP Inbox

app/Util/ActivityPub/Inbox.php

@@ -18,6 +18,7 @@ use App\{
 };
 use Carbon\Carbon;
 use App\Util\ActivityPub\Helpers;
+use Illuminate\Support\Str;
 use App\Jobs\LikePipeline\LikePipeline;
 use App\Jobs\FollowPipeline\FollowPipeline;