Failed calling webhook "vrunner.kb.io" while configuring GitLab Runner Operator on Openshift

While walking through instructions to install the GitLab Runner using the Red Hat OpenShift Operator and got stuck on step #7 (closed) trying to apply the gitlab-runner.yml with the following command: oc apply -f gitlab-runner.yml

Openshift version: 4.5.37_1536 User has admin access to Openshift

Error message: Error from server (InternalError): error when creating "gitlab-runner.yml": Internal error occurred: failed calling webhook "vrunner.kb.io": Post https://gitlab-runner-controller-manager-service.gitlab-runner.svc:443/validate-apps-gitlab-com-v1beta2-runner?timeout=10s: dial tcp 172.30.109.59:443: connect: connection refused

Terminal output with error:

Terminal showing content for gitlab-runner.yml and gitlab-runner-secret.yml: