ci: properly delete and cleanup the VMs on both hypervisors

previously, only HV2 was properly cleaned up. as a result, the CHV tests did
not actually bootstrap a new OS instance but instead use the one from
the QEMU test.

Author: anokfireball

.github/actions/test/integration/test/qemu/action.yml

@@ -144,8 +144,8 @@ runs:
           local IP="$1"
           ssh $SSH_OPTS "$USER@$IP" << EOF
             virsh destroy VM-QEMU || true
-            virsh undefine VM-QEMU --nvram --tpm --remove-all-storage
-            rm -f /var/lib/libvirt/images/ubuntu.qcow2
+            virsh undefine VM-QEMU --nvram --tpm --remove-all-storage || true
+            rm -f /var/lib/libvirt/images/ubuntu.*
             rm -f /opt/vm-qemu.xml
         EOF
         }

.github/workflows/test.yml

@@ -1,8 +1,5 @@
 name: test hypervisor capabilities
 on:
-  push:
-    branches:
-      - feat/ci-test-cloud-hypervisor
   workflow_run:
     workflows:
       - nightly