Hades v0.5.0 (Codename: Hades Forever)

Changes

Upgrade to Debian bullseye (GH-94, GH-99, GH-103, GH-113)
Dropped support for Python < 3.8
Forceful DHCP lease release (GH-67)
Maintain DHCP leases in database using dnsmasq lease script
AMQP changes
- Separate routing keys for each VRRP instance
- Durable exchanges
- Prefix option for AMQP objects
- New default name
Improved documentation (GH-73, GH-97)
Improved type annotations
Build improvements
- Debian packaging (GH-96)
- Configure script (GH-100)
systemd improvements (GH-102, GH-108)
- Rename radius-vrrp to root-vrrp for consistency (all other VRRP
  instances are named like their namespace)
- Order files consistently
- Use Type=notify for unbound
- Set RefuseManualStart for netns units, because they would automatically
  if not required anyway
- Convert the hades target into service, so that it can be reloaded
  Fix reference to non-existent hades-auth-dns.service unit
- Stop automatic restarts if non-transient setup errors occurr, that
  require operator intervention.
Allow authentication with unknown MAC addresses (GH-90)
Allow same MAC address in different IP subnets (GH-92)

Full Changelog: v0.4.0...v0.5.0