Fix conntrack for opensuse and docker support (#5880)

roles/bootstrap-os/tasks/main.yml

@@ -56,6 +56,7 @@
 - name: Assign inventory name to unconfigured hostnames (CoreOS, non-Flatcar, Suse and ClearLinux only)
   command: "hostnamectl set-hostname {{ inventory_hostname }}"
   register: hostname_changed
+  become: true
   changed_when: false
   when:
     - override_system_hostname