automate running on latest fedora version in ci matrix

[phlogistonjohn]

I wonder if I should rename the fedora test jobs something like fedora-previous and fedora-current or something to avoid this (small bit of) churn? Any opinions?

Well, we can't get rid of changes unless we do something as follows:

latest=$(curl -s -L https://fedoraproject.org/releases.json | jq -r '[.[].version | select("^[0-9]+$")] | max')

previous=$(( $latest - 1 ))

And of course I prefer "latest" over "current".

Would you like to go for it with the current PR?

Originally posted by @anoopcs9 in #140 (review)

[phlogistonjohn]

Also:

jq -r '[.[] | select(.variant == "Container" and .subvariant == "Container_Base"  and .arch == "x86_64")][0,1] | .version'