[CI] - capm3-ha-kubeadm-virt-ubuntu seems broken

Since yesterday it seems that capm3-ha-kubeadm-virt-ubuntu job is broken :

Kustomization/calico-ready state changed: ReconciliationFailed - unable to read KubeConfig secret 'sylva-system/mgmt-1396372537-kubeadm-capm3-virt-kubeconfig' error: secrets "mgmt-1396372537-kubeadm-capm3-virt-kubeconfig" not found

I suspect that the MR !2569 (merged) may cause this problem. (this needs to be confirmed).

(cc @vladimir.braquet)