[v3-0-test] Fix cherry-pick detection in airflow-github script (#54287)#54289

kaxil merged 1 commit intov3-0-testapache/airflow:v3-0-testfrom

backport-29a1cb0-v3-0-testapache/airflow:backport-29a1cb0-v3-0-testCopy head branch name to clipboard