[FEATURE] Add a toggle to switch between sandbox and production endpoints

Feature Description

A toggle/flag to switch between sandbox and production endpoints need to be created to pick up the desired endpoints from environment config toml file. The production endpoints for various connectors need to be added to the toml file as well

Possible Implementation

Create a simple flag to switch between sandbox and production endpoints

Have you spent some time to check if this feature request has been raised before?

• I checked and didn't find similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

No, but I'm happy to collaborate on a PR with someone else