Add risk_score indexes for kibana_system_user (#96348)

* Add risk_score  indexes for kibana_system_user

* Fix typeo

* Java fix

* Change formatting

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/security/authz/store/ReservedRolesStore.java

@@ -924,7 +924,8 @@ public class ReservedRolesStore implements BiConsumer<Set<String>, ActionListene
                         "logs-cloud_security_posture.vulnerabilities_latest-default*"
                     )
                     .privileges("create_index", "read", "index", "delete", IndicesAliasesAction.NAME, UpdateSettingsAction.NAME)
-                    .build() },
+                    .build(),
+                RoleDescriptor.IndicesPrivileges.builder().indices("risk-score.risk-*").privileges("all").build() },
             null,
             new ConfigurableClusterPrivilege[] {
                 new ManageApplicationPrivileges(Set.of("kibana-*")),

x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/security/authz/store/ReservedRolesStoreTests.java

@@ -1245,6 +1245,9 @@ public class ReservedRolesStoreTests extends ESTestCase {
                 is(true)
             );
         });
+
+        Arrays.asList("risk-score.risk-score-" + randomAlphaOfLength(randomIntBetween(0, 13)))
+            .forEach(indexName -> assertAllIndicesAccessAllowed(kibanaRole, indexName));
     }
 
     public void testKibanaAdminRole() {