Add docstring linting

[eliotwrobson]

See title, would be nice to be able to lint docstrings that are part of the public interface. https://github.com/jsh9/pydoclint?tab=readme-ov-file

[caleb531]

@eliotwrobson I like the idea of adding this to the toolchain, if you or someone else is able to implement it (I myself don't have the time in this season).

[eliotwrobson]

@caleb531 I'm going to have to set this up for another project pretty soon, so I can copy over what I use for that to the lint action 👍🏽

[eliotwrobson]

After playing around for a bit, the docstring linter looks really strict. Might take some fussing with the options before being able to use it here.