Postgresql ::date in Laravel ELOQUENT

Hello,

I have this RAW SQL statment:

SELECT created_at::date,
       count('x') AS anzahl
FROM addresssurveys
WHERE created_at >= '2021-03-01'
  AND created_at < '2021-03-31'
GROUP BY created_at::date
ORDER BY created_at

I tried to adapt it to Laravel:

Survey::select('created_at', DB::raw('count(*) AS anzahl '))->whereBetween('created_at', [$from, $to])->groupBy('created_at')->get();

How can I use the ::date inside the statment?