onnxruntime

[QNN EP] Add better unit tests for rank 5 ReduceSum (#17802)

### Description
We previously had a unit test that checked that QNN EP rejected rank 5 reduce ops. This PR:
- Allows the underlying QNN APIs to validate the input rank for Reduce ops.
- Modifies a rank 5 ReduceSum unit test so that it can be used to reproduce a graph finalization error on QNN SDK 2.15.1.
- Adds a new rank 5 ReduceSum unit test with a configuration that is known to work in QNN SDK 2.15.1.

### Motivation and Context
Allows us to more easily test/verify rank 5 support for ReduceSum.