This PR stops using the psycopg2’s connections context manager
because "CREATE DATABASE" command must be run outside any
transaction[1].
[1]: https://www.psycopg.org/docs/usage.html#transactions-control
Co-Authored-By: hungnt1 <sudo.nguyenhung@gmail.com>
Co-Authored-By: Hirotaka Wakabayashi <hiwkby@yahoo.com>
Story: 2010761
Task: 48059
Change-Id: I73ec6c659d8ad7216460055077737429c878df33