Needs approval from an approver in each of these files:
- ~~[OWNERS](https://github.com/openstack-k8s-operators/openstack-operator/blob/18.0.0-proposed/OWNERS)~~ [fao89,slagle]
Approvers can indicate their approval by writing `/approve` in a comment
Approvers can cancel approval by writing `/approve cancel` in a comment
also bumps lib-common/certmanager to pick up 918be86197a86882197d0aa51e7b17918fb9978f (https://github.com/openstack-k8s-operators/lib-common/commit/918be86197a86882197d0aa51e7b17918fb9978f)
Jira: OSPRH-9089 (cherry picked from commit 59cde420d7501d2f4658dddc16f9487d9b6992d9)