Enable the opa mixer adapter integration test (#2926)
Enable the opa mixer adapter integration test (#2926)

Automatic merge from submit-queue.

Enable the opa mixer adapter integration test
geeknoid/istio,smawson/istio,frankbu/istio,frankbu/istio,istio/istio,smawson/istio,istio/istio,smawson/istio,istio/istio,smawson/istio,smawson/istio,frankbu/istio,geeknoid/istio,geeknoid/istio,smawson/istio,frankbu/istio,geeknoid/istio,frankbu/istio,geeknoid/istio,istio/istio,geeknoid/istio,istio/istio,frankbu/istio