refactor: simplify country retrieval logic

- Replace verbose conditional checks with a ternary operator
- Use 'find_by!' for better error handling if country not found
- Maintain the functionality of state creation associated with the country

lib/tasks/sync_geo_data.rake

@@ -125,14 +125,9 @@ namespace :geo do
       count += 1
 
       country =
-        if data["country_code"]
-                 Region.find_by(id: data["country_code"])
-        elsif data["country_name"]
-                 Region.find_by(name: data["country_name"])
-        else
-          puts "Skip states #{data["name"]} without country"
-          next
-        end
+        data["country_code"] ?
+          Country.find_by!(code: data["country_code"]) :
+          Country.find_by!(name: data["country_name"])
 
       state = State.find_or_create_by!(name: data["name"]) do |s|
         s.country_id = country.id