[placement][requirements] RFE requested for osc-placement lib

Dear Release Team, The recently released osc-placement 3.1.0 has a serious bug[1] causing placement related openstack CLI commands to fail. The bugfix has been merged[2]. And a new bugfix release is proposed for osc-placement[3]. Please consider accepting this freeze exceptionm Thanks! gibi [1] https://bugs.launchpad.net/placement-osc-plugin/+bug/1942740 [2] https://review.opendev.org/c/openstack/osc-placement/+/807556 [3] https://review.opendev.org/c/openstack/releases/+/807591