Silence numpyro's warning about CPU instead of GPU

[gvegayon]

Goal

Remove annoying message about using CPU instead of GPU

Context

See #55 (comment)

Required features

Add the following like of code numpyro.set_platform("cpu")

Specifications

The line needs to be added in the following files.

• pyrenew_demo.qmd
• getting-started.qmd
• example-with-data.qmd

[gvegayon]

The published version of the tutorials does not show the message regarding GPUs. So it is no longer an issue. That said, the numpyro.set_platform() command didn't make the trick. I tried using that on my local manchine, and the message still shows up.

One message that shows up is regarding ipywidgets:

/home/runner/.cache/pypoetry/virtualenvs/pyrenew-ay_vsbmF-py3.12/lib/python3.12/site-packages/tqdm/auto.py:21: TqdmWarning: IProgress not found. Please update jupyter and ipywidgets. See https://ipywidgets.readthedocs.io/en/stable/user_install.html
  from .autonotebook import tqdm as notebook_tqdm

I'll create a ticket to address that.