Using apt-get with `-qq` displays only the following message
on package installation problems:
| E: Unable to correct problems, you have held broken packages.
Whereas with `-q`, we get the actual underlying problem, being:
| The following packages have unmet dependencies:
| builddeps:. : Depends: debhelper-compat (= 13)
| E: Unable to correct problems, you have held broken packages.
Furthermore, ubuntu-20.04 doesn't provide debhelper-compat (= 13),
therefore our workflows fail with:
| The following packages have unmet dependencies:
| builddeps:. : Depends: debhelper-compat (= 13)
| E: Unable to correct problems, you have held broken packages.
So enable the ubuntu-cloud-archive/yoga-staging PPA,
which provides a backport of debhelper v13:
https://launchpad.net/~ubuntu-cloud-archive/+archive/ubuntu/yoga-staging/+packages
and fixes our failing coverity builds on github.
While at it, let's switch from ubuntu-20.04 to ubuntu-latest, which
currently still points to ubuntu-20.04, but should reduce
our maintenance efforts.
Change-Id: Ifffd3e4b446ed916501acd26b160f2b48fb405a7