Update Docker.io group SRU exception

[Lucas Kanashiro]

Hi SRU team,

I'd like to request a minor change in the Docker.io group SRU exception 
[1]. There is an ongoing change happening in all supported releases [2] 
where now we are going to backport the following set of source packages:

- src:runc
- src:containerd-app
- src:docker.io-app

In order to keep the exception up-to-date, I'd like the approval to 
replace all the occurrences of docker.io by docker.io-app and all 
occurrences of containerd by containerd-app. If that is fine and you 
prefer, I can apply the changes myself, just let me know.

[1] https://wiki.ubuntu.com/DockerUpdates
[2] https://lists.ubuntu.com/archives/ubuntu-devel/2023-August/042729.html

TIA!

-- 
Lucas Kanashiro