requirements: update numpy requirement from <2.3.6,>=1.21.0 to >=2.4.6,<2.4.7

[dependabot]

Updates the requirements on numpy to permit the latest version.

Release notes

Sourced from numpy's releases.

v2.4.6 (May 18, 2026)

NumPy 2.4.6 Release Notes

NumPy 2.4.6 is a quick release that fixes a regression discovered in the 2.4.5 release.

This release supports Python versions 3.11-3.14

Contributors

A total of 4 people contributed to this release. People with a "+" by their names contributed a patch for the first time.

• !EarlMilktea
• Charles Harris
• Sebastian Berg
• Warren Weckesser

Pull requests merged

A total of 4 pull requests were merged for this release.

• #31444: MAINT: Prepare 2.4.x for further development
• #31453: BUG: Fix regression in arr.conj()
• #31459: BUG: np.linalg.svd(..., hermitian=True) returns non-unitary...
• #31460: BUG: Don't call INCREF/DECREF on descr in NpyStringAcquireAllocator...

Changelog

Sourced from numpy's changelog.

This is a walkthrough of the NumPy 2.4.0 release on Linux, which will be the first feature release using the numpy/numpy-release <https://github.com/numpy/numpy-release>__ repository.

The commands can be copied into the command line, but be sure to replace 2.4.0 with the correct version. This should be read together with the :ref:general release guide <prepare_release>.

Facility preparation

Before beginning to make a release, use the requirements/*_requirements.txt files to ensure that you have the needed software. Most software can be installed with pip, but some will require apt-get, dnf, or whatever your system uses for software. You will also need a GitHub personal access token (PAT) to push the documentation. There are a few ways to streamline things:

• Git can be set up to use a keyring to store your GitHub personal access token. Search online for the details.

Prior to release

Add/drop Python versions

When adding or dropping Python versions, multiple config and CI files need to be edited in addition to changing the minimum version in pyproject.toml. Make these changes in an ordinary PR against main and backport if necessary. We currently release wheels for new Python versions after the first Python RC once manylinux and cibuildwheel support that new Python version.

Backport pull requests

Changes that have been marked for this release must be backported to the maintenance/2.4.x branch.

Update 2.4.0 milestones

Look at the issues/prs with 2.4.0 milestones and either push them off to a later version, or maybe remove the milestone. You may need to add a milestone.

Check the numpy-release repo

... (truncated)

Commits

• b832a09 Merge pull request #31462 from charris/prepare-2.4.6
• 57cc147 REL: Prepare for the NumPy 2.4.6 release
• 0c72b0b Merge pull request #31459 from charris/backport-31347
• 9778d26 BUG: core: Don't call INCREF/DECREF on descr in NpyStringAcquireAllocator. (#...
• e0e3876 BUG: core: Don't call INCREF/DECREF on descr in NpyStringAcquireAllocator. (#...
• d1bffeb BUG: np.linalg.svd(..., hermitian=True) returns non-unitary vh (#31347)
• 8d8d7e5 Merge pull request #31453 from seberg/issue-31452
• bddaab7 BUG: Fix regression in arr.conj()
• 37a1ecc Merge pull request #31444 from charris/begin-2.4.6
• 3c0e043 MAINT: Prepare 2.4.x for further development
• Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[dependabot]

Superseded by #3568.