Add db cleanup function for easier debugging and testing of dags

[Avihais12344]

Description

I think that a function that automatically truncates the Airflow's can be beneficial for us to help us combine and manage the state of airflow with dag.test and debugging dags.

Use case/motivation

I want to have a function that I can call using my python code (mostly in my tests) to truncate the whole airflow db locally, it would only work in unit tests mode and on sqlite only (to avoid deleting production db).

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[clawdney]

Hi! I'm interested in helping with this. Could you share more context about the use case?