Initial net-http-persistent taken from 2.7-2, updated for 2.9.4.
Rename ruby(abi) to ruby(release), drop the version number.
Don't run the tests.

See: https://github.com/fedora-ruby/fermig/blob/a6fa1ac5abccbd130fb1cc6f9ec9a53a69b4a8fc/f19.rb#L25
Add a srpm for net-http-persistent to try things out.