Chasing updated package versions is silly. We already have other tests
to make sure the blueprints support version numbers there is no need to
fail a test at the whim of an upstream repo.
Use constants so we won't have to edit a dozen places in the test when
the package versions are bumped.
Also switch to using Fedora 31 GPG key now that it has branched for
Fedora 30.
Brian C. Lane
Alexander Todorov
Stef Walter