Unable to locate icingadb-redis

I’ve been following these instructions Ubuntu - Icinga 2 to install Icinga2 and up until now it’s been going ok but now I’m unable to install the Redis Server as it’s unable to locate package icingadb-redis.

lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.10
Release: 22.10
Codename: kinetic

According to Icingadb-redis install - Icinga DB - Icinga Community it should be available on 22, but I can’t find it when I search for it. Do I need to use a different version of Ubuntu or am I just doing something wrong? Thanks for you help.