Make sure to include pytest.ini in the MANIFEST.
Make sure to include pytest.ini in the MANIFEST.

That way, downstream consumers (like rpm builds) have the
appropriate registered mark for pytest and won't throw
warnings.

Signed-off-by: Chris Lalancette <281cd07d7578d97c83271fbbf2faddb83ab3791c@openrobotics.org>

clalancette/pyiso,clalancette/pycdlib