`python -m build` fails for model packages

[dweindl]

Both python -m build and python -m build -n fail for different reasons:

CMake Error: The source directory "/tmp/build-via-sdist-82l29nw2/WuYan2007-0.1.0" does not appear to contain CMakeLists.txt. -> MANIFEST issues?

ModuleNotFoundError: No module named 'amici' -> pyproject.toml for models with build-system.requires

Using build would be one way to address #2169.