This update for lxd fixes the following issues:

Update to LXD 4.21 (boo#1193649)

+ Cluster member groups
+ Trust certificate self-renewal
+ Restricted disk passthrough in projects
+ Restricted idmap uid/gid in projects
+ List all lxc commands with --sub-commands
+ List instances across all projects with --all-projects
+ New database-leader cluster role
+ Routed networking in virtual machines
+ Support for ipv4.routes and ipv6.routes on routed type NICs
+ Option to skip records for NAT-ed addresses in network zones
+ Allow blocking an IP address family with security filtering options
+ New ceph.rbd.du storage config option to disable potentially slow rbd du
+ Live migration of virtual machines
+ Network peering for OVN
+ Network zones (DNS)
+ SR-IOV acceleration for OVN networking
+ Linux sysctl configuration on containers
+ Core scheduling for virtual machines
+ Cluster member configuration
+ Network forwards (floating IPs)
+ Native BGP support
+ Refresh support for custom volume copies
+ Additional device restrictions for projects