feat(starrocks): enable user and privilege management

crates/dbx-core/assets/database-drivers.manifest.json

@@ -525,7 +525,7 @@
         "databaseCreate": true,
         "fieldLineage": false,
         "sqlExplain": false,
-        "userAdmin": false,
+        "userAdmin": true,
         "driverManagement": false
       }
     },

crates/dbx-core/tests/database_capabilities.rs

@@ -325,6 +325,9 @@ fn driver_manifest_declares_expected_product_capabilities() {
     assert!(zookeeper.capabilities.query_execution);
     assert!(zookeeper.capabilities.driver_management);
     assert!(!zookeeper.capabilities.metadata_browse);
+
+    let starrocks = find_driver(DatabaseType::StarRocks);
+    assert!(starrocks.capabilities.user_admin);
 }
 
 #[test]