* configure pooler auth type based on parameters
* need to sync CONNECTION_POOLER_AUTH_TYPE
* add case when auth type is not yet set
* Update docs/migrate.md
Co-authored-by: Ida Novindasari <idanovinda@gmail.com>
* add type cast to only allow scram or md5
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Co-authored-by: Ida Novindasari <idanovinda@gmail.com>