Updated openstack/openstack
Project: openstack/requirements  1ecdda7f8c21083f529d8fdbabac5e60273c3db4

Bump oslotest minimum requirements to 1.2.0

Since it was recently released, lets bump minimum version of
oslotest to 1.2.0. Some keystone related projects plan on
leveraging code that is 1.2.0 specific.

Ref: https://review.openstack.org/#/c/130045/

Change-Id: I151d02fe0fa4ef7355847c779b3cbecc87e0c242