UpCloud integration (#8653)

contrib/terraform/upcloud/modules/kubernetes-cluster/main.tf

inventory/sample/group_vars/all/upcloud.yml

inventory/sample/group_vars/k8s_cluster/k8s-cluster.yml

roles/kubernetes-apps/csi_driver/upcloud/defaults/main.yml

roles/kubernetes-apps/csi_driver/upcloud/tasks/main.yml

...si_driver/upcloud/templates/upcloud-csi-controller.yml.j2

...i_driver/upcloud/templates/upcloud-csi-cred-secret.yml.j2

...ps/csi_driver/upcloud/templates/upcloud-csi-driver.yml.j2

...apps/csi_driver/upcloud/templates/upcloud-csi-node.yml.j2

...pps/csi_driver/upcloud/templates/upcloud-csi-setup.yml.j2

roles/kubernetes-apps/meta/main.yml

roles/kubernetes-apps/persistent_volumes/meta/main.yml

...tes-apps/persistent_volumes/upcloud-csi/defaults/main.yml

...rnetes-apps/persistent_volumes/upcloud-csi/tasks/main.yml

...es/upcloud-csi/templates/upcloud-csi-storage-class.yml.j2

roles/kubernetes/client/defaults/main.yml

roles/kubernetes/client/tasks/main.yml

roles/kubespray-defaults/defaults/main.yaml