Add a job to delete old event entries

[loreV]

The event job should have been configured so to delete the old entries every time the end_date is found in the past

[loreV]

Also, the existing collection data should be updated.
Only ~30 exists at current time

db.getCollection("ert.Event").find({})
   .projection({})
   .sort({_id:-1})
   .limit(1000).forEach((it) => {
       let dateFrom = new Date(it.date_from);
       let dateTo = new Date(it.date_to);
       
       db.getCollection("ert.Event").updateOne({_id: it._id}, 
            {$set: { 
                date_from: dateFrom, 
                date_to: dateTo
            }
        }
    )
   }
)