bugfixes:
  - bgp_neighbors - remove string conversion of timer attributes (https://github.com/ansible-collections/dellemc.enterprise_sonic/pull/60)
breaking_changes:
  - bgp_af - remove the obsolete 'advertise_prefix' attribute from argspec and config code. This and subsequent co-req replacement with the new route advertise list argument structure require corresponding changes in playbooks previoulsly used for configuring route advertise prefixes for SONiC 3.x images. (https://github.com/ansible-collections/dellemc.enterprise_sonic/pull/60)
