Update the APIs to check if the alert rule is manage by an operator and source is "user".
1. For GET rules APIs , return the label that reports this information
2. For DELETE rule -  Do not allow deletion since they would be reconciled.
Return an error that this alert is managed by an operator, therefor can't be deleted and can only be silenced.
3. For alert rules in Platform alerts that are managed by the AlertingRule CRD - Allow to create/update/delete rules.
4. For Update rules - Only allow updating the group and component labels.

We would enable this by using an external mapping that we will need to manage for them - CNV-75208