* ci: redefine multinode to node-etcd-client

This should allow to catch several class of problem rather than just
one -> from network plugin such as calico or cilium talking directly to
the etcd.

* Dynamically define etcd host range

This has two benefits:
- We don't play the etcd role twice for no reason
- We have access to the whole cluster (if needed) to use things like
  group_by.

* Add multinode ci layout

* Add test case for calico using etcd datastore

* Rename aio to all-in-one and document it

ADTM.
Acronyms don't tell much.

* Refactor vm_count in tests provisioning

* Fix containerd_registries in config_path for mirrors and remove nerdctl global insecure_registry setting

* Make containerd hosts.toml mode 0640

* Add containerd_registries_mirrors and keep containerd_registries to pass packet_debian11-calico-upgrade

* Add Fedora 35 image, support and CI

* Cleanup tests and allow_failure for vagrant

* add CI test for auto_renew_certificates

* change timer value

fix typo error in rotate cert script

* Switch deploy-part1 AIO job to Calico

* Cleanup file

* Remove newline at end

* PHASE 2 - Enable Packet-CI in gitlab

* Add gitlab files

* Reset files back and only keep Packet

* Include packet

* Add missing Upgrade Tests

* Update GCE jobs etc

* Fix bug

* Yaml lint all gitlab files

* Remove GCE

* Test

* Test again

* Enable GCE again

* Install requirements

* Cleanup the gitlab file

* Cleanup runner tags

* Install requirements

* Test

* Test variables for gce

* Test again

* Test again

* Fix

* Update