[RESULT][VOTE] Release Airflow 2.2.4 from 2.2.4rc1

[Jed Cunningham]

Hello,

Apache Airflow 2.2.4 (based on RC1) has been accepted.

3 “+1” binding votes received:
- Jed Cunningham
- Kaxil Naik
- Ephraim Anierobi

Vote thread:https://lists.apache.org/thread/pgxczr9qdnfqptxg7k6op518l0yk429z

I'll continue with the release process, and the release announcement
will follow shortly.

Thanks,
Jed