openstack-base: pin setuptools < 46 to get horizon working
openstack-base: pin setuptools < 46 to get horizon working

pyScss used by Horizon fails to work with setuptools > 46 version.

It's last release was in 2016 so probably no one fix it.
Let make sure that we get older version of setuptools.

Broken due to https://bugs.launchpad.net/kolla/+bug/1866961

Change-Id: I2a3fa657a3e1a9b8b0acb0b50bd4f3e98078f4ff

stackforge/kolla,openstack/kolla,stackforge/kolla,stackforge/kolla,openstack/kolla