sample-pytorchjob should update to cuda12+ and pytorch 2.0

[village-way]

What would you like to be added:

sample-pytorchjob should update cuda and pytorch version, the image in the examples/jobs/sample-pytorchjob.yaml is too old.

Why is this needed:

the sample pytorchjob failed to run on ubuntu 22.04 with cuda12.3

Completion requirements:

This enhancement requires the following artifacts:
the image docker.io/kubeflowkatib/pytorch-mnist:v1beta1-45c5727 is from kubeflowkatib and the dockerfile is updated by kubeflow/katib#2278

The artifacts should be linked in subsequent comments.

[kannon92]

@village-way would you be willing to submit a PR? Generally, we should use examples from kubeflow.

[tenzen-y]

@village-way I'd be happy to review the opened PR :)

[village-way]

@village-way I'd be happy to review the opened PR :)

I'm very excited to do this. I'll submit the PR a little later.

[kannon92]

Thank you @village-way for picking this up!