Description of the issue:

The Distributed Tracing Plugin has been GA since COO 1.2.0 
https://docs.redhat.com/en/documentation/red_hat_openshift_cluster_observability_operator/1-latest/html/red_hat_openshift_cluster_observability_operator_release_notes/cluster-observability-operator-release-notes#cluster-observability-operator-release-notes-1-2_cluster-observability-operator-release-notes
But the plugin docs still has the Tech Preview note:
https://docs.redhat.com/en/documentation/red_hat_openshift_cluster_observability_operator/1-latest/html/ui_plugins_for_red_hat_openshift_cluster_observability_operator/distributed-tracing-ui-plugin