Update values updated at column

lib/tasks/import_address_from_csv.rake

@@ -33,6 +33,7 @@ namespace :data_import do
       lettings_log.county = nil
       lettings_log.is_la_inferred = nil
       lettings_log.la = nil
+      lettings_log.values_updated_at = Time.zone.now
 
       lettings_log.save!
       Rails.logger.info("Updated lettings log #{lettings_log_id}, with address: #{[lettings_log.address_line1, lettings_log.address_line2, lettings_log.town_or_city, lettings_log.postcode_full].join(', ')}")