fix kubespray-defaults: Check for boostrap-os FQCN (#11073)

roles/kubespray-defaults/tasks/main.yaml

@@ -3,7 +3,7 @@
   # do not run gather facts when bootstrap-os in roles
   when: >
         ansible_play_role_names |
-        intersect(['bootstrap-os', 'kubernetes-sigs.kubespray.bootstrap-os']) |
+        intersect(['bootstrap-os', 'kubernetes_sigs.kubespray.bootstrap-os']) |
         length == 0
   tags:
     - always