[AIRFLOW-XXXX] Add known issue  - example_dags/__init__.py (#7444)
[AIRFLOW-XXXX] Add known issue  - example_dags/__init__.py (#7444)


(cherry picked from commit d83ce260c074d3f887948921d3ebbdb1100cc800)

owlabs/incubator-airflow,owlabs/incubator-airflow,owlabs/incubator-airflow,owlabs/incubator-airflow