[openstack-ansible] New core on board!

Hey everyone! Today we have several reasons to celebrate! First of all, we have released OSA Ussuri with tag 21.0.0 (better late than never :p). And even more exciting announcement, that Andrew Bonney is our new OpenStack-Ansible Core reviewer! Even though usual proposal process has been skipped this time, I think everyone will agree that Andrew deserved it and it's high time we congratulated him with becoming part of our team. Welcome on board, Andrew! -- Kind Regards, Dmitriy Rabotyagov