Cleanup tests (#8234)

* Add Fedora 35 image, support and CI

* Cleanup tests and allow_failure for vagrant

tests/files/packet_centos7-calico-ha-once-localhost.yml

@@ -4,16 +4,12 @@ cloud_image: centos-7
 mode: ha
 
 # Kubespray settings
-kube_network_plugin: calico
 download_localhost: true
 download_run_once: true
-deploy_netchecker: true
-dns_min_replicas: 1
 typha_enabled: true
 calico_backend: kdd
 typha_secure: true
 disable_ipv6_dns: true
-
 auto_renew_certificates: true
 
 # Docker settings