I am working on a monitoring setup based on Keycloak 19.0.2, Metrics SPI, Prometheus Pushgateway and Prometheus. So far I have been able to make Keycloak instances (running on AWS ECS) push their metrics to the Pushgateway but I want the metrics to be somewhat private. Therefore I enabled basic auth on the push gateway but this blocks the pushes as well. Is there a way for the Metrics SPI to push metrics with credentials?