[VL] Sort merge join result mismatch issue

### Backend

VL (Velox)

### Bug description

https://github.com/apache/incubator-gluten/blob/main/gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/velox/VeloxTestSettings.scala#L885

### Spark version

None

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

_No response_

Start with gluten-ut/spark35/src/test/scala/org/apache/gluten/utils/velox/VeloxTestSettings.scala at line 885 and inspect the associated Velox merge-join test settings. Run the relevant test to reproduce the sort merge join result mismatch; done means the test produces matching results and includes coverage for the reported case.

Written by the indexing model from the issue text.