Create TLS certs for OVN exporter services

[karelyatin]

As part of Metrics TLS support in the Related-Issue, exporter will
be enabled per pod, so created a dedicated cert for this.

Related-Issue: OSPRH-12568

[karelyatin]

/test openstack-operator-build-deploy-kuttl-4-18

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/876bc80b756b4e79886cba8324165bd9

✔️ openstack-k8s-operators-content-provider SUCCESS in 3h 18m 23s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 10m 38s
✔️ cifmw-crc-podified-edpm-baremetal SUCCESS in 1h 27m 06s
✔️ adoption-standalone-to-crc-ceph-provider SUCCESS in 3h 06m 22s
❌ openstack-operator-tempest-multinode RETRY_LIMIT in 10m 46s

[karelyatin]

recheck retry limit

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprince, karelyatin

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [dprince]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment