Use the `Framework :: Pytest` trove classifier to build the plugin list

[etianen]

What's the problem this feature will solve?

I've just released a pytest plugin called logot, but because it isn't named pytest-XXX, it needs to be manually added to the plugin list (see #11972).

Describe the solution you'd like

It would be great if the scripts/update-plugin-list.py discovered plugins based on the Framework :: Pytest trove classifier.

As well as logot, this would correctly discover the logassert, nuts and flask_fixture plugins that currently require manual adding to the list. It would allow the manual list to be completely eliminated! 🔥

Alternative Solutions

N/A

Additional context

Maybe this is impossible! But if you think this feature is a good idea, I'd be happy to investigate more and provide a PR! ❤️

[The-Compiler]

We used to have that, but it yields way too many false-positives due to many projects using that classifier to show "this project uses pytest for its tests".

[etianen]

Ah, not a good idea then, and for good reasons! 🤣 Many thanks! ❤️