Increase resetWebsite timeout. fix retention bug returning decimal day_number in CH.

Closes #3698

src/queries/sql/reports/getRetention.ts

@@ -133,7 +133,7 @@ async function clickhouseQuery(
     user_activities AS (
       select distinct
         website_event.session_id,
-        (${getDateSQL('created_at', unit, timezone)} - cohort_items.cohort_date) / 86400 as day_number
+        toInt32((${getDateSQL('created_at', unit, timezone)} - cohort_items.cohort_date) / 86400) as day_number
       from website_event
       join cohort_items
       on website_event.session_id = cohort_items.session_id