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
}
    public static boolean isReserved(String role) {
        return RESERVED_ROLES.containsKey(role);
    }
    public Map<String, Object> usageStats() {
        return Collections.emptyMap();
    }
    public RoleDescriptor roleDescriptor(String role) {
        return RESERVED_ROLES.get(role);
    }
    public Collection<RoleDescriptor> roleDescriptors() {
        return RESERVED_ROLES.values();
    }
    public static Set<String> names() {
        return RESERVED_ROLES.keySet();
    }
    @Override
    public void accept(Set<String> roleNames, ActionListener<RoleRetrievalResult> listener) {
        final Set<RoleDescriptor> descriptors = roleNames.stream()
            .map(RESERVED_ROLES::get)
            .filter(Objects::nonNull)
            .collect(Collectors.toSet());
        listener.onResponse(RoleRetrievalResult.success(descriptors));
    }
    @Override
    public String toString() {
        return "reserved roles store";
    }
}