Description

Even though CIBW_BEFORE_BUILD and CIBW_BEFORE_TEST were set to install numpy >= 2.0.0rc1 in #61, the wheels are neither built nor tested with numpy 2.0.0rc1 in CI. The environment variable PIP_PRE=1 needs to be set, otherwise pip downgrades to the latest 1.x release.

Release note

Summarize the changes in the code block below to be included in the
release notes:

Build with NumPy 2

Checklist

• The pull request title, summary, and description are concise.
• Related issues are linked in the description.
• New dependencies are explained.
• The source code and documentation can be distributed under the MIT license.
• The source code adheres to code standards.
• New classes, functions, and features are thoroughly tested.
• New, user-facing classes, functions, and features are documented.
• New features are covered in tutorials.
• No files other than source code, documentation, and project settings are added to the repository.