Update Phi-3.5 vision tutorial (#22833)
### Description
This PR updates the Phi-3 vision tutorial to work with the latest ONNX
models uploaded and replaces Phi-3 vision with Phi-3.5 vision as the
example model.
### Motivation and Context
This helps document how to use the new uploaded ONNX models with ONNX
Runtime GenAI v0.5.1.
