[error] Can't find a spell matching 'canonical-kubernetes'

Hi,

I wanted to try

$ lsb_release -d
Description: Ubuntu 19.04

$ kubernetes install
1) microk8s
2) Canonical Distribution of Kubernetes
3) Quit
Please choose an installation option: 2
Fetching components...
snap "conjure-up" is already installed, see 'snap help refresh'
[error] Can't find a spell matching 'canonical-kubernetes'

Relate-to:

* https://github.com/conjure-up/conjure-up/issues/1150
* https://askubuntu.com/questions/1145119/canonical-kubernetes-disappeared

Also may I suggest to rename this package to avoid collision with:

https://packages.qa.debian.org/k/kubernetes.html

It confused me in:

https://bugs.debian.org/bug=886739