[SSSD] [PATCH] Fix the version number

[Jakub Hrozek]

When I was releasing the last beta, I wrongly assumed that the version
could be set to 1.9.0

That would however prevent us from being able to release another release
candidate. Luckily the n-v-r in the Fedora builds is fine, so this only
affects the nightly builds.

Attached is a patch that reverts the version number to 1.8.97. I'll also
fix the packages in our nightly repo.