also install azure-cli on focal/arm64

upgrade to ansible 2.10, decommit xenial

workaround for awless / heroku on arm64 hosts

azure tools et al take 800M on disk, not for micro servers

setup beam, the solusvm client

disable packet cli by default

test: refactor yaml, add focal, push to galaxy

update apt cache for awscli on focal, minor fixes

stat user completions rather than try/rescue

install hetzner-cloud cli

rename devhost_allow_reinstall -> devhost_upgrade

factor role lin_go from lin_devel

workaround for github issue with heroku gpg key

fallback to global completions in docker

rename role lin_system -> lin_core