[AIRFLOW-9347] Fix QuboleHook unable to add list to tags

[egibbm]

Upon upgrading to 1.10.10, existing behavior of accepting a list of tags in QuboleOperator() dag have broken due to a refactor. This fix should have the same behavior of handling tags as expected before the refactor.

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[boring-cyborg]

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[chattarajoy]

thanks for taking this up @egibbm . LGTM

[boring-cyborg]

Awesome work, congrats on your first merged pull request!