Draft: CI: Automatically emerge changed packages
This MR automatically emerges changed packages compared to origin/master on merge requests. This is to make sure newly submitted ebuilds can be built on a clean Gentoo install.
Set COMPARE_TO to
Detect/Fix REQUIRED_USE problems or ignore build failures (set
allow_failurein CI config)
Signed-off-by: Adrian 'nex' Schollmeyer email@example.com