Get rid of psycopg2 warnings by disabling wheels
Get rid of psycopg2 warnings by disabling wheels

The psycopg2 wheel package warnings are causing some tests
to fail which expect there to be no stderr output. This fixes
the problem by not using the wheel binary for that package.

Closes-Bug: #1811876

Change-Id: Id43e74d8d343ab4e80d1d246543bada1ed4d06ad

openstack/sqlalchemy-migrate,stackforge/sqlalchemy-migrate,openstack/sqlalchemy-migrate