DeprecationWarning: __array__ implementation doesn't accept a copy keyword

[maarten-ic]

Reproduction: run pytest in an environment with numpy version >=2.0. This reports multiple warnings related to the copy keyword:

  DeprecationWarning: __array__ implementation doesn't accept a copy keyword, so passing copy=False failed. __array__ must implement 'dtype' and 'copy' keyword arguments. To learn more, see the migration guide https://numpy.org/devdocs/numpy_2_0_migration_guide.html#adapting-to-changes-in-the-copy-keyword
    return array(a, order=order, subok=subok, copy=True)

See https://numpy.org/devdocs/numpy_2_0_migration_guide.html#adapting-to-changes-in-the-copy-keyword