Add variable to the Koji library, which contains the current rawhide tag

[bookwar]

Fedora Rawhide uses moving versioned tag. Currently it is 'f34'

The more or less reliable way to get this value is to request it from koji in a form:

kojisession.getFullInheritance('rawhide')[0]['name']

Let's add the variable to Koji module, so it can be used uniformly through all scripts and pipelines, especially in triggers.

[bgoncalv]

Hmm, I didn't know we could use kojisession to get this information.

I've been using Version from https://src.fedoraproject.org/rpms/fedora-release/raw/master/f/fedora-release.spec

[msrb]

Nice :) I was looking for something like this as well.