Bump numpy from 2.1.2 to 2.1.3 in /requirements

Bumps [numpy](https://github.com/numpy/numpy) from 2.1.2 to 2.1.3.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](numpy/numpy@v2.1.2...v2.1.3)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/requirements.txt

@@ -1,4 +1,4 @@
-numpy == 2.1.2
+numpy == 2.1.3
 scipy == 1.14.1
 matplotlib == 3.9.2
 cvxpy == 1.5.3