cloud-clusterissuers v0.3.1: fix conditional blocks

[deer-wmde]

In v0.3.0 #187
we added conditional statements for "staging & production" cluster issuers.

What we thought those meant: the cluster issuers for our staging and production environments
What it turned out to be: the Let's Encrypt staging and production environments: https://letsencrypt.org/docs/staging-environment/

So with this version those two get used again for both environments, but not on local.

[tarrow]

Do you think we should keep the Let's Encrypt staging environment present in our production environment?

[tarrow]

@deer-wmde wrote on mattermost

I mean hopefully we won't ever need to change anything there anyway but again, if we do, then we have a way to test retrieving a cert successfully without having to mess with the one that is actually used