1. Proposed title of this feature request

ACM Provide Token Based Authentification for AlertManagement Destinations

2. What is the nature and description of the request?

This comes from both customer and internal discussion
I will add a screenshot how it works with other product

3. Why does the customer need this? (List the business requirements here)

secure destinations are needed. Certificate based authentification not enough for all usecases

4. List any affected packages or components.

this is not enough for all usecases:
https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.14/html-single/observability/index#secure-comm-alertmanager