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
randomAlphaOfLength(10),
                Map.of("kibana" + randomAlphaOfLengthBetween(0, 4), mock(Object.class)),
                Map.of(
                    "kibana" + randomAlphaOfLengthBetween(0, 4),
                    mock(Object.class),
                    randomValueOtherThan("kibana", () -> randomAlphaOfLengthBetween(0, 6)),
                    mock(Object.class)
                ),
                randomFrom(-1L, randomLong()),
                randomFrom(-1L, randomLong()),
                randomFrom(WriteRequest.RefreshPolicy.values())
            );
        assertThat(kibanaRole.cluster().check(UpdateProfileDataAction.NAME, updateProfileDataRequest, authentication), is(false));
        
        assertThat(kibanaRole.runAs().check(randomAlphaOfLengthBetween(1, 12)), is(false));
        assertThat(kibanaRole.cluster().check(DelegatePkiAuthenticationAction.NAME, request, authentication), is(true));
        assertThat(kibanaRole.indices().allowedIndicesMatcher(IndexAction.NAME).test(mockIndexAbstraction("foo")), is(false));
        assertThat(kibanaRole.indices().allowedIndicesMatcher(IndexAction.NAME).test(mockIndexAbstraction(".reporting")), is(false));
        assertThat(
            kibanaRole.indices().allowedIndicesMatcher("indices:foo").test(mockIndexAbstraction(randomAlphaOfLengthBetween(8, 24))),
            is(false)
        );
        Arrays.asList(
            ".kibana",
            ".kibana-devnull",
            ".reporting-" + randomAlphaOfLength(randomIntBetween(0, 13)),
            ".apm-agent-configuration",
            ".apm-custom-link",
            ".apm-source-map",
            ReservedRolesStore.ALERTS_LEGACY_INDEX + randomAlphaOfLength(randomIntBetween(0, 13)),