Fivetran Async Provider for Apache Airflow

The `airflow-provider-fivetran-async` library provides asynchronous operators, sensors, and hooks for integrating Fivetran with Apache Airflow. It leverages Airflow's deferrable tasks to efficiently orchestrate Fivetran data synchronization jobs, freeing up worker slots during I/O-bound waiting periods. This provider is actively maintained by Astronomer and Fivetran, with the current stable version being 2.3.0 and regular releases, including alpha versions for upcoming features and breaking changes.