Fix wrong port in config.mongodb.
Fix wrong port in config.mongodb.

cargomedia/pulsar-rest-api,vogdb/pulsar-rest-api,njam/pulsar-rest-api,cargomedia/pulsar-rest-api,cargomedia/pulsar-rest-api,njam/pulsar-rest-api,njam/pulsar-rest-api,cargomedia/pulsar-rest-api,vogdb/pulsar-rest-api,njam/pulsar-rest-api,vogdb/pulsar-rest-api