make iceberg engine a paid feature

src/frontend/src/handler/create_table.rs

@@ -1448,6 +1448,9 @@ pub async fn create_iceberg_engine_table(
     constraints: Vec<TableConstraint>,
     table_name: ObjectName,
 ) -> Result<()> {
+    risingwave_common::license::Feature::IcebergEngine
+        .check_available()
+        .map_err(|e| anyhow::anyhow!(e))?;
     // 1. fetch iceberg engine options from the meta node.
     // 2. create a hummock table
     // 3. create an iceberg sink

src/license/src/feature.rs

@@ -57,6 +57,7 @@ macro_rules! for_all_features {
             { SqlServerCdcSource,   Paid,       "CDC source connector for Sql Server." },
             { CdcAutoSchemaChange,  Paid,       "Auto replicate upstream DDL to CDC Table." },
             { IcebergSinkWithGlue,  Paid,       "Delivering data to Iceberg with Glue catalog." },
+            { IcebergEngine,        Paid,       "Creating table with an iceberg engine." },
         }
     };
 }