Fix pylint to work with constraints
Fix pylint to work with constraints

Both the pylint and the pylint-constraints file are broken with
constraints since the constraints file is not set up.

Use zuul-git-prep-upper-constraints to set up the upper-constraints
file.

Change-Id: I4ff711dad211e9e483bd214aa2f6c3f7f4d70ecf

Tesora/tesora-project-config,noorul/os-project-config,Tesora/tesora-project-config,dongwenjuan/project-config,openstack-infra/project-config,noorul/os-project-config,openstack-infra/project-config,dongwenjuan/project-config