fix: forget return

Author: dqhl76

src/query/service/src/pipelines/processors/transforms/aggregator/new_aggregate/new_aggregate_spiller.rs

@@ -205,6 +205,7 @@ impl SharedPartitionStreamInner {
                     pending_blocks.push((id, block));
                 }
             }
+            return pending_blocks;
         }
         vec![]
     }