Based on [1] and confirmation from the monitoring team, `openshift-netobserv-operator` is not supported with PrometheusRules. As such, [2] needs to be updated to change `PrometheusRule` to `AlertingRule`. 



[1]https://docs.openshift.com/container-platform/4.15/monitoring/configuring-the-monitoring-stack.html#:~:text=and%20by%20design.-,Support%20considerations%20for%20monitoring,-The%20following%20modifications
[2]https://docs.openshift.com/container-platform/4.15/network_observability/metrics-alerts-dashboards.html#:~:text=workload_rtt_seconds-,Creating%20alerts,-You%20can%20create

4.12+    

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