execute notebooks when building docs

[OriolAbril]

This will ensure that the core notebooks in this repo are correctly versioned along with
the rest of the documentation. As they are only a handful of small and fast notebooks
it doesn't take long, but we should keep in mind to not add long/slow notebooks here
and keep them on pymc-examples.

I think we should wait to merge this until we have merged the updated notebooks in #5369

[review-notebook-app]

Check out this pull request on 

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[codecov]

Codecov Report

Merging #5314 (c8ff9d0) into main (d52655d) will decrease coverage by 1.28%.
The diff coverage is n/a.

❗ Current head c8ff9d0 differs from pull request most recent head ffce07d. Consider uploading reports for the commit ffce07d to get more accurate results

@@            Coverage Diff             @@
##             main    #5314      +/-   ##
==========================================
- Coverage   80.36%   79.08%   -1.29%     
==========================================
  Files          89       88       -1     
  Lines       14808    14435     -373     
==========================================
- Hits        11901    11416     -485     
- Misses       2907     3019     +112     

Impacted Files	Coverage Δ
pymc/sampling_jax.py	0.00% <0.00%> (-97.46%)	⬇️
pymc/variational/stein.py	38.00% <0.00%> (-10.34%)	⬇️
pymc/tuning/starting.py	83.19% <0.00%> (-9.37%)	⬇️
pymc/variational/approximations.py	30.06% <0.00%> (-6.25%)	⬇️
pymc/variational/opvi.py	30.29% <0.00%> (-5.93%)	⬇️
pymc/variational/flows.py	31.55% <0.00%> (-5.24%)	⬇️
pymc/__init__.py	96.07% <0.00%> (-3.93%)	⬇️
pymc/model.py	83.55% <0.00%> (-2.38%)	⬇️
pymc/tests/conftest.py	90.47% <0.00%> (-1.53%)	⬇️
pymc/distributions/mixture.py	19.76% <0.00%> (-1.42%)	⬇️
... and 41 more

[OriolAbril]

This should fix itself once we unpin/upgrade aesara and/or pin numpy

[OriolAbril]

Aesara doesn't seem to work on readthedocs, even with the numpy pin, now it is installed and imported but can't compile models: https://pymc--5314.org.readthedocs.build/en/5314/learn/examples/pymc_overview.html#model-specification. We'll need to use something like: https://github.com/dfm/rtds-action which I don't have time to set up right now, unless someone can try this nowish we should move it to beta3 milestone and release beta2

[OriolAbril]

Auto execution working now: https://pymc--5314.org.readthedocs.build/en/5314/learn/examples/GLM_linear.html is now running on beta2 and bambi 0.7