aimet-onnx-gpu should specify onnxruntime-gpu in its package metadata

[NikilXYZ]

The whl package metadata should specify onnxruntime-gpu when I'm specifically downloading the gpu version of the package.

Your instructions say to pip uninstall onnxruntime and replace with the gpu version, but that doesn't work if I'm trying to manage all of my dependencies with Poetry (which I imagine is fairly common).