The oslo.cache 3.7.0 release introduced some options for redis backend
and redis sentinel backend. This introduces for these parameters.
Depneds-on: https://review.opendev.org/910629
Change-Id: Ia29f285622db27d9f4d29cfb8f335cc99216ca87
Watcher uses oslo.cache for caching for overload standard deviation
strategy[1]. This change introduces support for parameters of that
library.
[1] 9d3671af371fc2b686fc08a1c1710fbe314121d5
Change-Id: I43ec3b4f1991661fc457cc0312bf8d6d587ee4c9
