Update Airflow Version to 2.1.0

[it-sceptic]

this would be immensely helpful as industry is adopting this version. Appreciate your awesome contribution. Peace!

[ukewea]

Hi,

I forked the repository and managed to update the configuration file, and it seems to be working.

If anyone is in interest, you may pull my build on Docker Hub

Thanks puckel for the amazing work!

[sd016808]

Hi,

I forked the repository and managed to update the configuration file, and it seems to be working.

If anyone is in interest, you may pull my build on Docker Hub

Thanks puckel for the amazing work!

Nice job! I have tested it in my Synology NAS.