7c6047e1b8
Build releasenotes without tox and use a venv directly. This avoids problems with special tox install commands in certain projects. For now, install current project as well to avoid breaking projects that set version or release for releasenotes document. This follows the CTI: https://governance.openstack.org/tc/reference/project-testing-interface.html#release-notes Change-Id: I56909152975f731a9d2c21b2825b972195e48ee8