[Feat] Postgres as a Source

[shubham19may]

1. CDC sync
2. Connections tests

[ashujoshi20]

I reviewed the postgres.go file and noticed a potential improvement in the Check() function related to database connection management.
The db.Close() call is missing, which can lead to connection leaks during the connection test process. Adding defer db.Close() right after db = db.Unsafe() could help ensure the database connection is closed after its intended use.

[hash-data]

Hi @ashujoshi20 we will start work on postgres driver soon.