onnxruntime

4754a1d6 - [QNN-EP] Introduce Level1 Transformer into qnn.preprocess (#25883)

[QNN-EP] Introduce Level1 Transformer into qnn.preprocess (#25883) ### Description - Introduce Level1 Transformer into qnn.preprocess to support various optimizations. ### Motivation and Context - This change brings in several useful optimizations such as `ConvBnFusion` and `ConstantFolding`, which are part of `TransformerLevel::Level1` and can benefit QNNEP. - The goal is to optimize the ONNX model before quantization by integrating these passes into the Python tooling workflow.