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/test/java/org/elasticsearch/xpack/core/security/authz/store/ReservedRolesStoreTests.java
assertOnlyReadAllowed(role, index);
        }
        assertNoAccessAllowed(role, TestRestrictedIndices.SAMPLE_RESTRICTED_NAMES);
        assertNoAccessAllowed(role, XPackPlugin.ASYNC_RESULTS_INDEX + randomAlphaOfLengthBetween(0, 2));
    }
    public void testPredefinedViewerRole() {
        final TransportRequest request = mock(TransportRequest.class);
        final Authentication authentication = AuthenticationTestHelper.builder().build();
        RoleDescriptor roleDescriptor = new ReservedRolesStore().roleDescriptor("viewer");
        assertNotNull(roleDescriptor);
        assertThat(roleDescriptor.getMetadata(), hasEntry("_reserved", true));
        final String allowedApplicationActionPattern = "example/custom/action/*";
        Role role = Role.buildFromRoleDescriptor(
            roleDescriptor,
            new FieldPermissionsCache(Settings.EMPTY),
            RESTRICTED_INDICES,
            List.of(new ApplicationPrivilegeDescriptor("kibana-.kibana", "read", Set.of(allowedApplicationActionPattern), Map.of()))
        );
        
        assertThat(role.cluster().check(ClusterHealthAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(ClusterStateAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(ClusterStatsAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(PutIndexTemplateAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(ClusterRerouteAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(ClusterUpdateSettingsAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(MonitoringBulkAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(DelegatePkiAuthenticationAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(ActivateProfileAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(SuggestProfilesAction.NAME, request, authentication), is(false));
        assertThat(role.cluster().check(UpdateProfileDataAction.NAME, request, authentication), is(false));