Posture check: OCI Event Rule and Notification does not exist for IAM policy 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.identitycontrolplane.createpolicy and condition.eventType[*] contains com.oraclecloud.identitycontrolplane.deletepolicy and condition.eventType[*] contains com.oraclecloud.identitycontrolplane.updatepolicy) and actions.actions[*].topicId exists' as X; count(X) less than 1```