Cleanup tests (#8234)

* Add Fedora 35 image, support and CI

* Cleanup tests and allow_failure for vagrant

tests/files/packet_ubuntu16-docker-weave-sep.yml

@@ -5,11 +5,8 @@ mode: separate
 
 # Kubespray settings
 kube_network_plugin: weave
-deploy_netchecker: true
-dns_min_replicas: 1
+auto_renew_certificates: true
 
 # Docker specific settings:
 container_manager: docker
 etcd_deployment_type: docker
-
-auto_renew_certificates: true