Ejabberd 20.12 (XMPP, Instant Messaging, IM, Chat, Video and Voice Calling, WebSocket)

[Neustradamus]

Easy to update, the base is to replace 20.03 by 20.12 (except one line and add a new line in nethserver-ejabberd.spec)

• https://github.com/NethServer/nethserver-ejabberd/search?q=20.03