Clean up (#165)

* change dependencies

* Switch to psycopg^3

* refactor

* disable postgresClock

* cancel async-leak-task when exit test

* refactor

* refactor

* update extra

* update lock file

* up

* up

* remove scope

* up

* remove cancel

* re-organize functions & modules

* refactor

* remove clock-exception

* remove cancel method

Author: vutran1710