Updated from global requirements

Change-Id: I8f9828e5e3a266a1ba52f9c09ddad4ed8d928e1b

Author: OpenStack Proposal Bot

requirements.txt

@@ -12,6 +12,6 @@ osc-lib>=1.2.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.utils>=3.18.0 # Apache-2.0
 python-glanceclient>=2.5.0 # Apache-2.0
-python-keystoneclient>=3.6.0 # Apache-2.0
+python-keystoneclient>=3.8.0 # Apache-2.0
 python-novaclient!=2.33.0,>=2.29.0 # Apache-2.0
 python-cinderclient!=1.7.0,!=1.7.1,>=1.6.0 # Apache-2.0