Monitoring data can now be stored in `metrics-*` patterns when collected through elastic-agent. [Our documentation](https://www.elastic.co/guide/en/kibana/current/monitoring-data.html) recommends to use the `monitoring_user` role to view the data in Stack Monitoring application but that role does not have permissions to read from the metrics pattern.

`monitoring_user` should be allowed the same permissions on `metrics-*` as `.monitoring-*`
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/security/authz/store/ReservedRolesStore.java
.indices("/~(([.]|ilm-history-).*)/")
                    .privileges("read", "view_index_metadata")
                    .build(),
                
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices("observability-annotations")
                    .privileges("read", "view_index_metadata", "write")
                    .build(),
                
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(ReservedRolesStore.ALERTS_LEGACY_INDEX, ReservedRolesStore.LISTS_INDEX, ReservedRolesStore.LISTS_ITEMS_INDEX)
                    .privileges("read", "view_index_metadata", "write", "maintenance")
                    .build(),
                
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(
                        ReservedRolesStore.ALERTS_BACKING_INDEX,
                        ReservedRolesStore.ALERTS_INDEX_ALIAS,
                        ReservedRolesStore.PREVIEW_ALERTS_BACKING_INDEX_ALIAS,
                        ReservedRolesStore.PREVIEW_ALERTS_INDEX_ALIAS
                    )
                    .privileges("read", "view_index_metadata", "write", "maintenance")
                    .build() },
            new RoleDescriptor.ApplicationResourcePrivileges[] {
                RoleDescriptor.ApplicationResourcePrivileges.builder()
                    .application("kibana-.kibana")
                    .resources("*")
                    .privileges("all")
                    .build() },
            null,