1. Proposed title of this feature request
>> 
Include ghcr.io hostname in the firewall’s allowlist section

2. What is the nature and description of the request?
>>>
Multiple functionalities using images present on ghcr.io.

  https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/cluster_observability_operator/configuring-the-cluster-observability-operator-to-monitor-a-service#monitoring-scrape-targets-in-multiple-namespaces_configuring_the_cluster_observability_operator_to_monitor_a_service
  https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/red_hat_build_of_opentelemetry/index#otel-collecting-diagnostic-data-from-command-line_otel-troubleshoot

However, the hostname is not included in the allowed list in the below documentation,

  https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/installation_configuration/configuring-firewall#configuring-firewall_configuring-firewall

3. Why does the customer need this? (List the business requirements here)
>>> There's no mention of the hostname "ghcr.io" in the firewall’s allowlist result customers can not download the required images if firewall does not have it included in the allow list.