Upgrade kobo to 0.10.0 due to a bug
It seems like there's a bug in kobo for python3:
https://github.com/release-engineering/kobo/issues/64
This is solved in 0.10.0 version, available only from f30.
Let's upgrade to that one.
Signed-off-by: Giulia Naponiello <gnaponie@redhat.com>