net/cloud-init: Update to 23.1.1
- distros/freebsd: add support for static IPv6 addresses
- Sync Makefile with cloud-init-devel (minimize diff)
PR: 270334
Changes: https://github.com/canonical/cloud-init/blob/23.1.x/ChangeLog
Reported by: andrey@bsdnir.info (maintainer)