feat: update urls to use url helper

spec/mailers/bulk_upload_mailer_spec.rb

@@ -46,7 +46,7 @@ RSpec.describe BulkUploadMailer do
           filename: bulk_upload.filename,
           upload_timestamp: bulk_upload.created_at.to_fs(:govuk_date_and_time),
           success_description: "The lettings 2022/23 data you uploaded has been checked. The 0 logs you uploaded are now complete.",
-          logs_link: "#{lettings_logs_url}?years[]=&status[]=&user=all&organisation_select=all",
+          logs_link: lettings_logs_url("[years][]" => "", "[status][]" => "", user: :all, organisation_select: :all),
         },
       )