Update Airflow filtered warnings, address deprecations

[AetherUnbound]

Description

This PR removes two filtered warnings for the Airflow/catalog tests that are no longer present, and addresses a deprecation warning that is currently being raised.

Note

This targets #3572 and should be merged after it.

Testing Instructions

1. just catalog/test shouldn't throw any warnings when the tests complete!

Checklist

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• I added or updated tests for the changes I made (if applicable).
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• I ran the DAG documentation generator (if applicable).

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[obulat]

The CI is passing, and no warnings are present 👍