[MNT] CI job to run notebook examples

[fkiraly]

Adds a CI job to run notebook examples.

Also contains fixes to missing imports in the notebooks.

This should prevent missing datasets such as in #401, also see #423

Depends on #424 which should be merged first.

[dswah]

@fkiraly looks like the bash script needs execution privileges at least. Can you fix?

[fkiraly]

fixed - but now the code does not seem to be able to find the wage.csv. Any ideas?

[dswah]

@fkiraly i will try a local install to narrow down if pygam is being distributed without CSV files, or if UV is not installing them...

[dswah]

OK, neither local UV nor PIP installs include the datasets... perhaps they are not being distributed?

[dswah]

OK, neither local UV nor PIP installs include the datasets... perhaps they are not being distributed?

@fkiraly indeed, inspecting the TAR.gz on pypi shows that the dataets CSVs are not included

[fkiraly]

hm, then I see multple issues:

• the datasets are not included
• the data loaders are not covered by tests
• I thought adding all csv to the setuptools package-data would fix the issue?

  pyGAM/pyproject.toml

  Line 67 in 3b64bec

  pygam = [

  - but apparently not

[fkiraly]

opened an issue here: #423

[fkiraly]

@dswah, ready to review again. #424 should be merged first.

[dswah]

@fkiraly this is great!!
good job figuring out the packaging. merging...