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/security/src/test/java/org/elasticsearch/xpack/security/authz/RBACEngineTests.java
.add(FieldPermissions.DEFAULT, null, IndexPrivilege.MONITOR, false, ".security*")
            .build();
        authzInfo = new RBACAuthorizationInfo(role, null);
        response = hasPrivileges(
            IndicesPrivileges.builder().indices(".sec*", ".security*").privileges("index", "monitor").build(),
            authzInfo,
            Collections.emptyList(),
            Strings.EMPTY_ARRAY
        );
        assertThat(response.allChecksSuccess(), is(false));
        assertThat(response.getDetails().index().values(), Matchers.iterableWithSize(2));
        assertThat(
            response.getDetails().index().values(),
            containsInAnyOrder(
                ResourcePrivileges.builder(".sec*")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new LinkedHashMap<String, Boolean>()).put("index", true).put("monitor", false).map()
                    )
                    .build(),
                ResourcePrivileges.builder(".security*")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new LinkedHashMap<String, Boolean>()).put("index", true).put("monitor", true).map()
                    )
                    .build()
            )
        );
        response = hasPrivileges(
            IndicesPrivileges.builder().indices(".sec*", ".security*").privileges("index", "monitor").allowRestrictedIndices(true).build(),
            authzInfo,
            Collections.emptyList(),