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
RoleDescriptor.ApplicationResourcePrivileges.builder().application("*").privileges("*").resources("*").build() },
        null,
        new String[] { "*" },
        MetadataUtils.DEFAULT_RESERVED_METADATA,
        Collections.emptyMap(),
        TcpTransport.isUntrustedRemoteClusterEnabled()
            ? new RoleDescriptor.RemoteIndicesPrivileges[] {
                new RoleDescriptor.RemoteIndicesPrivileges(
                    RoleDescriptor.IndicesPrivileges.builder().indices("*").privileges("all").allowRestrictedIndices(false).build(),
                    "*"
                ),
                new RoleDescriptor.RemoteIndicesPrivileges(
                    RoleDescriptor.IndicesPrivileges.builder()
                        .indices("*")
                        .privileges("monitor", "read", "view_index_metadata", "read_cross_cluster")
                        .allowRestrictedIndices(true)
                        .build(),
                    "*"
                ) }
            : null
    );
    private static final Map<String, RoleDescriptor> RESERVED_ROLES = initializeReservedRoles();
    private static RoleDescriptor.RemoteIndicesPrivileges getRemoteIndicesReadPrivileges(String indexPattern) {
        return new RoleDescriptor.RemoteIndicesPrivileges(
            RoleDescriptor.IndicesPrivileges.builder()
                .indices(indexPattern)
                .privileges("read", "read_cross_cluster")
                .allowRestrictedIndices(false)
                .build(),
            "*"