airflow: Update Armada version
A recent Shipyard change  introduced user-context tracing support in
Shipyard, which requires the passing of an additional parameter to the
Armada API client. The Armada client was updated to handle the
additional parameter ; however, the Shipyard version Armada uses was
not updated. This change uplifts the version of Armada in
requirements.txt for the Airflow component of Shipyard to a version that
supports the aforementioned, additional, user-context parameter.