feat: tenant tagging pipeline draft

[botanical]

Summary:

https://github.com/NASA-IMPACT/veda-architecture/issues/677

Changes

• Created a DAG to tag a list of collections with a tenant property
• Added a function to fix normalizing dates, which I noticed when I was testing updating collections with my DAG

PR Checklist

• Unit tests
• Ad-hoc testing - Deploy changes and test manually
• Integration tests
• Infrastructure changes - test using terraform validate and terraform plan

[botanical]

@sandrahoang686 Thanks for the review, I believe I addressed all your feedback.

I made one additional change to update the DAG to handle newlines for a collections list since this seems to be the convention that airflow uses for list params.
https://airflow.apache.org/docs/apache-airflow/stable/_modules/airflow/example_dags/example_params_ui_tutorial.html
https://airflow.apache.org/docs/apache-airflow/stable/core-concepts/params.html#use-params-to-provide-a-trigger-ui-form

[ividito]

Some nits but no blockers