Adding 3 apply_filters in update_order_meta

I would like to be able to force the delivery date & delivery time since i don’t use the timeslot picker in the checkout page. In order to do that I came up with a solution that would require a feature request (adding 3 apply_filters). Here a gist of the proposed solution. https://gist.github.com/btribouillet/104865353f76185e4f9776ea250c0ac7 Best regards, Brieuc