CI: use VirtualMachineInstance for VMs

VMI in Kubevirt are the abstraction below VirtualMachine.

- We don't really need the extra abstraction of VirtualMachine objects
- Convert the waiting for VMs ip address to use kubernetes.core.k8s_info
  and no shell pipeline

tests/cloud_playbooks/roles/packet-ci/templates/vm.yml.j2

@@ -1,6 +1,6 @@
 ---
 apiVersion: kubevirt.io/v1
-kind: VirtualMachine
+kind: VirtualMachineInstance
 metadata:
   generateName: test-vm-
   namespace: {{ pod_namespace }}
@@ -8,6 +8,8 @@ metadata:
     kubespray.com/ci.template-path: "tests/cloud_playbooks/roles/packet-ci/templates/vm.yml.j2"
   labels:
     kubevirt.io/os: {{ cloud_image }}
+    kubevirt.io/size: small
+    kubevirt.io/domain: "{{ test_name }}"
     ci_job_id: "{{ ci_job_id }}"
     ci_job_name: "{{ ci_job_name }}"
   # leverage the Kubernetes GC for resources cleanup
@@ -17,46 +19,39 @@ metadata:
     name: "{{ pod_name }}"
     uid: "{{ pod_uid }}"
 spec:
-  running: true
-  template:
-    metadata:
-      labels:
-        kubevirt.io/size: small
-        kubevirt.io/domain: "{{ test_name }}"
-    spec:
-      domain:
-        devices:
-          blockMultiQueue: true
-          disks:
-            - disk:
-                bus: virtio
-              name: containervolume
-              cache: writethrough
-            - disk:
-                bus: virtio
-              name: cloudinitvolume
-          interfaces:
-          - name: default
-            bridge: {}
-        cpu:
-            cores: {{ vm_cpu_cores }}
-            sockets: {{ vm_cpu_sockets }}
-            threads: {{ vm_cpu_threads }}
-        resources:
-          requests:
-            memory: "{{ vm_memory * memory_allocation_ratio }}Mi"
-            cpu: {{ vm_cpu_cores * cpu_allocation_ratio }}
-          limits:
-            memory: "{{ vm_memory }}Mi"
-            cpu: {{ vm_cpu_cores }}
-      networks:
+  domain:
+    devices:
+      blockMultiQueue: true
+      disks:
+        - disk:
+            bus: virtio
+          name: containervolume
+          cache: writethrough
+        - disk:
+            bus: virtio
+          name: cloudinitvolume
+      interfaces:
       - name: default
-        pod: {}
-      terminationGracePeriodSeconds: 0
-      volumes:
-        - name: containervolume
-          containerDisk:
-            image: quay.io/kubespray/vm-{{ cloud_image }}
-        - name: cloudinitvolume
-          cloudInitNoCloud:
-            userDataBase64: {{ cloud_init[cloud_image] }}
+        bridge: {}
+    cpu:
+        cores: {{ vm_cpu_cores }}
+        sockets: {{ vm_cpu_sockets }}
+        threads: {{ vm_cpu_threads }}
+    resources:
+      requests:
+        memory: "{{ vm_memory * memory_allocation_ratio }}Mi"
+        cpu: {{ vm_cpu_cores * cpu_allocation_ratio }}
+      limits:
+        memory: "{{ vm_memory }}Mi"
+        cpu: {{ vm_cpu_cores }}
+  networks:
+  - name: default
+    pod: {}
+  terminationGracePeriodSeconds: 0
+  volumes:
+    - name: containervolume
+      containerDisk:
+        image: quay.io/kubespray/vm-{{ cloud_image }}
+    - name: cloudinitvolume
+      cloudInitNoCloud:
+        userDataBase64: {{ cloud_init[cloud_image] }}