Kiali -> prometheus connection broken when monitoring SSO enabled

Due to the new way Authservice works as an extension provider (see https://repo1.dso.mil/platform-one/big-bang/bigbang/-/merge_requests/847) it appears that when monitoring SSO is enabled, Kiali is unable to reach Prometheus.

This communication happens via the svc address in cluster (not via the VS) but appear to be being protected by SSO via authservice.

The response message provided when Kiali hits Prometheus is RBAC: access denied.

Preliminary testing done with APs here: https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/issues/23#note_432707