Updated from global requirements

Change-Id: I09acea781d9df7c88a90c3915724b1245f2e219b

Author: OpenStack Proposal Bot

requirements.txt

@@ -6,7 +6,7 @@ six>=1.9.0 # MIT
 
 Babel!=2.4.0,>=2.3.4 # BSD
 cliff>=2.8.0 # Apache-2.0
-keystoneauth1>=2.21.0 # Apache-2.0
+keystoneauth1!=3.0.0,>=2.21.0 # Apache-2.0
 openstacksdk>=0.9.17 # Apache-2.0
 osc-lib>=1.7.0 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0