Update numpy requirement from ~=1.26.4 to ~=2.0.0

Updates the requirements on [numpy](https://github.com/numpy/numpy) to permit the latest version.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](numpy/numpy@v1.26.4...v2.0.0)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -1,6 +1,6 @@
 sphinx~=7.2.6
 setuptools~=69.0.3
-numpy~=1.26.4
+numpy~=2.0.0
 pyiron_atomistics~=0.4.17
 ase~=3.22.1
 atomistics~=0.1.23