Fatima Mojaddidy

Right now it is hard coded to check every 30 seconds. Can you please make this an option that one can set in the config? Would greatly appreciate it :)

As of right now, when using Datadog to monitor Aurora Postgres databases, and when [dbm](https://github.com/DataDog/integrations-core/blob/797869d0d67bd1aeb206c13e168546008ca5d077/postgres/datadog_checks/postgres/data/conf.yaml.example#L395) is enabled, the only way to limit the number of databases being monitored is through...