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
assertThat(
            Strings.collectionToCommaDelimitedString(app1),
            app1,
            containsInAnyOrder(
                ResourcePrivileges.builder("foo/1")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new LinkedHashMap<String, Boolean>())
                            .put("read", true)
                            .put("write", false)
                            .put("all", false)
                            .map()
                    )
                    .build(),
                ResourcePrivileges.builder("foo/bar/2")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new LinkedHashMap<String, Boolean>())
                            .put("read", true)
                            .put("write", false)
                            .put("all", false)
                            .map()
                    )
                    .build(),
                ResourcePrivileges.builder("foo/bar/baz")
                    .addPrivileges(
                        MapBuilder.newMapBuilder(new LinkedHashMap<String, Boolean>())
                            .put("read", true)
                            .put("write", true)
                            .put("all", true)
                            .map()
                    )