Merged PR 2828: Exposing Deal info to reporting

# Description

Exposes the 2 new deal fields to reporting to make it accessible for PBI

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [X] I have checked for DRY opportunities with other models and docs.
- [X] I've picked the right materialization for the affected models.

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Exposing Deal info to reporting

Related work items: #18911, #19083

models/reporting/general/monthly_aggregated_metrics_history_by_deal.sql

@@ -9,6 +9,8 @@ select
     day as day,
     date as date,
     id_deal as id_deal,
+    main_deal_name as main_deal_name,
+    main_billing_country_iso_3_per_deal as main_billing_country_iso_3_per_deal,
     deal_lifecycle_state as deal_lifecycle_state,
     created_bookings as created_bookings,
     check_out_bookings as check_out_bookings,
@@ -28,7 +30,7 @@ select
     listings_booked_in_month as listings_booked_in_month,
     listings_booked_in_6_months as listings_booked_in_6_months,
     listings_booked_in_12_months as listings_booked_in_12_months,
-     -- Avoid displaying revenue figures until invoicing period finishes
+    -- Avoid displaying revenue figures until invoicing period finishes
     case
         when {{ is_date_before_previous_month("date") }}
         then total_revenue_in_gbp

models/reporting/general/schema.yaml

@@ -470,6 +470,19 @@ models:
         tests:
           - not_null
 
+      - name: main_deal_name
+        data_type: string
+        description: |
+          Main name for this ID deal.
+        tests:
+          - not_null
+
+      - name: main_billing_country_iso_3_per_deal
+        data_type: string
+        description: |
+          ISO 3166-1 alpha-3 main country code in which the Deal is billed.
+          In some cases it's null.
+
       - name: year
         data_type: int
         description: year number of the given date.