Update oslo.utils to 4.x
@@ -24,7 +24,7 @@ networkx==1.11
# NOTE: Recent version substantially affect the performance and add big import time overhead
# See https://github.com/StackStorm/st2/issues/4160#issuecomment-394386433 for details
oslo.config>=1.12.1,<1.13
-oslo.utils>=3.36.2,<=3.37.0
+oslo.utils<5.0,>=4.0.0
paramiko==2.7.1
passlib==1.7.1
prance==0.9.0
