prod-lon: reduce number of log-api and log-cache instances to 27
prod-lon: reduce number of log-api and log-cache instances to 27

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf