Draft: Add focal support
This MR:
- adds the
ubuntu-sdk-20.04
framework - adds a CI image mapping to support the 20.04 framework in the
ci
command - adds
focal
channel support to thepublish
command - removes support for
dev
CI images as we dropped them with Clickable 7
Solves #277 (closed). Depends on clickable-docker-images!68 (closed).
Edited by Jonatan Hatakeyama Zeidler