This patch separates the Test job of the PR workflow into several
smaller jobs: 1) create a testing sandbox and deploy Talos, 2) install
Cozystack and configure it, 3) install managed applications and run e2e
tests. This lets developers shorten the feedback loop if tests are
merely acting flaky and aren't really broken. It's not the right way,
but it's 80/20.
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
