[v3-2-test] Re export AirflowPlugin to fix mypy errors in plugins (#65132)#65163

jscheffl merged 1 commit into

apache:v3-2-testapache/airflow:v3-2-testfrom

jscheffl:backport-521d525-v3-2-testjscheffl/airflow:backport-521d525-v3-2-testCopy head branch name to clipboard