Posture check: OCI Event Rule and Notification does not exist for Network Security Groups changes
Query: ```config from cloud.resource where cloud.type = 'oci' AND api.name = 'oci-events-rule' AND json.rule = '(isEnabled equals true) and (actions.actions[?any( actionType equals ONS and isEnabled equals true and lifecycleState equals ACTIVE)] exists) and (condition.eventType[*] contains com.oraclecloud.virtualnetwork.changenetworksecuritygroupcompartment and condition.eventType[*] contains com.oraclecloud.virtualnetwork.createnetworksecuritygroup and condition.eventType[*] contains com.oraclecloud.virtualnetwork.deletenetworksecuritygroup and condition.eventType[*] contains  com.oraclecloud.virtualnetwork.updatenetworksecuritygroup) and actions.actions[*].topicId exists' as X; count(X) less than 1```