Task: Setup a nightly build for the cas-airflow repo

[JoshLarouche]

Describe the task

Setup a nightly build for the cas-airflow repo to increase security in cases where code is not submitted for multiple days.

Acceptance Criteria

• A nightly build github action has been set up
• A yarn-audit github action has been set up

Additional context

• Add any other context about the task here.
• Or here