Mongodb Authentication failure with shared cluster

[arunbenoyv]

Hi,
We have a shaded MongoDB cluster hence in the connection string we have to provide the authSource
user:password@mongo-qr--svc:port/?authSource=admin

In mongodb_connector.ts
https://github.com/hastic/hastic-server/blob/master/server/src/services/data_service/db_connector/mongodb_connector.ts

function getDbConfig only fetches user, password, url, dbName and not the authSource

and while initialising the client authsource is taken form dbName
authSource: dbConfig.dbName

This is a feature that we would like to have.