6ed40be146
As per the community goal of migrating the policy file the format from JSON to YAML[1], we need to replace policy.json to policy.yaml and remove deprecated policy.json. [1]https://governance.openstack.org/tc/goals/selected/wallaby/migrate-policy-format-from-json-to-yaml.html Change-Id: I03a29bab6663d1d0ee6130707ea5865ebbd916d5