update startup port to conform with settings in puppet
update startup port to conform with settings in puppet

alphagov/trade-tariff-backend,alphagov/trade-tariff-backend,alphagov/trade-tariff-backend,leftees/trade-tariff-backend,bitzesty/trade-tariff-backend,bitzesty/trade-tariff-backend,leftees/trade-tariff-backend,bitzesty/trade-tariff-backend,leftees/trade-tariff-backend