[18.0.0-proposed] rabbitmq panic fixes

[stuggi]

• Fix panic if no spec is provided for rabbitmq LoadBalancer override
• Fix panic if no annotation is provided for rabbitmq LoadBalancer override

Jira: https://issues.redhat.com/browse/OSPRH-8490 Jira: https://issues.redhat.com/browse/OSPRH-8066

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: abays, stuggi

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

The pull request process is described here

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)~~ [abays,stuggi] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[softwarefactory-project-zuul[bot]]

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/aba7b3e69e064ce88afac9c9329dfcb0

:heavy_check_mark: openstack-k8s-operators-content-provider SUCCESS in 8h 47m 16s :heavy_check_mark: podified-multinode-edpm-deployment-crc SUCCESS in 1h 14m 12s :x: cifmw-crc-podified-edpm-baremetal FAILURE in 39m 08s :heavy_check_mark: openstack-operator-tempest-multinode SUCCESS in 1h 40m 42s

[jpodivin]

recheck

sigs.k8s.io/controller-tools@v0.12.1: Get "[https://proxy.golang.org/sigs.k8s.io/controller-tools/@v/v0.12.1.zip":](https://proxy.golang.org/sigs.k8s.io/controller-tools/@v/v0.12.1.zip%22:) net/http: TLS handshake timeout

[stuggi]

/retest