bump python version in tutorial ci workflow

[danielvegamyhre]

As part of the release I was running the tutorial workflows and encountered this error which indicates that Python 3.9 is no longer finding Torch CUDA 12.6 builds:

Looking in indexes: https://download.pytorch.org/whl/nightly/cu126
ERROR: Could not find a version that satisfies the requirement torch (from versions: none)
ERROR: No matching distribution found for torch
ERROR conda.cli.main_run:execute(125): `conda run pip install --pre torch torchvision torchaudio --index-url [https://download.pytorch.org/whl/nightly/cu126`](https://download.pytorch.org/whl/nightly/cu126%60) failed. (See above for error)

I notice other workflows are using 3.10 or 3.11, so I am bumping this version to match, and it resolves the issue.

[pytorch-bot]

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