Update numpy requirement from ~=1.24.0 to ~=1.26.2

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@v1.24.0...v1.26.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

tests/requirements.txt

@@ -3,7 +3,7 @@ coverage>=5.1
 coverage-pyver-pragma>=0.2.1
 html5lib>=1.1
 importlib-metadata>=3.6.0
-numpy~=1.24.0; python_version >= "3.8"
+numpy~=1.26.2; python_version >= "3.8"
 pytest>=6.0.0
 pytest-cov>=2.8.1
 pytest-datafiles>=2.0