Add information to the list of integrations about Airflow 2+

[RamanDamayeu]

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List of Existing integrations for Airflow points to https://github.com/opendatadiscovery/odd-airflow-adapter that is good for Airflow <= 1.10.15. We also need to add information about an integration with Airflow >= 2.5.1 implemented via different adapter: https://github.com/opendatadiscovery/odd-airflow-2