CI: test reset on flatcar (#13492)

This is a good way to validate reset behavior with immutable systems

.gitlab-ci/kubevirt.yml

@@ -43,6 +43,7 @@ pr:
           - fedora42-kube-router
           - fedora43-flannel-crio-collection-scale
           - fedora43-kube-router
+          - flatcar4081-calico
           - opensuse-leap16-calico
           - rockylinux10-cilium
           - rockylinux9-cilium
@@ -69,8 +70,7 @@ pr-flakey:
   retry: 2
   parallel:
     matrix:
-      - TESTCASE:
-          - flatcar4081-calico # https://github.com/kubernetes-sigs/kubespray/issues/12309
+      - TESTCASE: []
 
 # The ubuntu24-calico-all-in-one jobs are meant as early stages to prevent running the full CI if something is horribly broken
 ubuntu24-calico-all-in-one:

tests/files/flatcar4081-calico

@@ -0,0 +1 @@
+RESET_CHECK=true