Fix kernel upgrade when

ansible/k8s/tasks/upgrade_kernel.yaml

@@ -21,5 +21,4 @@
   with_items: "{{ groups[rke2_cluster_group_name] }}"
   loop_control:
     loop_var: _host_item
-  when: hostvars[_host_item].inventory_hostname == inventory_hostname
-  # when: (hostvars[_host_item].inventory_hostname == inventory_hostname ) and reboot_required_file.stat.exists)
+  when: (hostvars[_host_item].inventory_hostname == inventory_hostname ) and reboot_required_file.stat.exists)