openlineage: disable running listener if not configured #33120
Merged
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There's a discussion whether to include OpenLineage provider in default Airflow image.
https://apache-airflow.slack.com/archives/C03G9H97MM2/p1691163069712479
In this case, we won't have an assumption that user explicitely enabled OpenLineage or works in an environment where OpenLineage is expected to run. This means logs, generating OpenLineage events and some overhead associated with it would be not an expected behavior from an user.
This PR disables even launching OpenLineage listener if no option required to run it has been configured, so no unexpected behavior exists. Those changes are only relevant in case of it being included by default - they should not be merged otherwise.