Include test templates in sdist tarball

[Natureshadow]

Please include these templates and release a new (post) release to PyPI.

This is important to be able to reproducibly run the test suite in the Debian package.

[clokep]

While testing this I ended up with the tests directory installed into site-packages, which is generally unwanted.

This seems to match what Django has in their MANIFEST.in, but I don't seem to end up with their tests in site-packages -- maybe there's a missing config somewhere to control that?

[ghost]

I tried to rebase this branch on top of main and ran pyproject-build .. It correctly includes the tests folder in the sdist and not in the wheel.

[clokep]

While testing this I ended up with the tests directory installed into site-packages, which is generally unwanted.

Do you have any response to this? Is there updated guidance saying this is a good idea?