Use the existing method to cleanup allocation info to force partition re-assignment during the rollover

Author: Fly-Style

indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisor.java

@@ -3443,9 +3443,7 @@ private void checkTaskDuration() throws ExecutionException, InterruptedException
         changeTaskCountInIOConfig(rolloverTaskCount);
         // Here force reset the supervisor state to be re-calculated on the next iteration of runInternal() call.
         // This seems the best way to inject task amount recalculation during the rollover.
-        partitionGroups.clear();
-        partitionOffsets.clear();
-        partitionIds.clear();
+        clearAllocationInfo();
       }
     }
   }