Add lodgingCheckOut to experienceevent-lodging-reservation.schema.json

## What are the schemas that are affected by the issue
components/fieldgroups/experience-event/industry-verticals/experienceevent-lodging-reservation.schema.json

## What are examples of products that are impacted by the issue
The current lodging reservation field group has a lodgingCheckIn object, but does not contain a matching lodgingCheckOut object, only a checkoutDate. The intention with the new data object is to hold details to populate a guest checkout receipt.

Start by reading components/fieldgroups/experience-event/industry-verticals/experienceevent-lodging-reservation.schema.json, comparing the existing lodgingCheckIn object with checkoutDate. Done means the schema contains a matching lodgingCheckOut data object capable of holding the details needed for a guest checkout receipt.

Written by the indexing model from the issue text.