This update for lxd fixes the following issues:

Update to LXD 3.21. (boo#1163651)

The full upstream changelog is available from:
https://discuss.linuxcontainers.org/t/lxd-3-21-has-been-released/6802

+ New way to attach to LXD managed networks
+ Clustering: Configurable number of active and standby database members
* Ceph ported to new storage driver infrastructure
* VM: CPU pinning and topology
* VM: Network and storage optimizations
* VM: Agent-less reporting of IPv6 addresses