Manually build the srpm for the copr CI
I'm not sure what changed but copr was building the
srpm using the upstream tarball and not the current git
checkout so it wasn't actually testing anything.
copr now uses the manual make srpm method instead, as
documented at
https://docs.pagure.org/copr.copr/user_documentation.html#make-srpm
Use configure.ac to determine the current version.
Signed-off-by: Rob Crittenden <rcritten@redhat.com>