How forest handles db transactions under the hoods?

## Expected behavior

I want to have all my DB queries done through transactions to keep consistency.

## Actual behavior

I didn't find a reference for this in the docs and code.

## Failure Logs

N/A

## Context

* Package Version: 5.7.0
* Express Version: 4.17.1
* Sequelize Version: 5.21.4
* Database Dialect: psql
* Database Version: 11.4
