Bump numpy from 1.23.1 to 1.23.2 in /requirements (#708)

Bumps [numpy](https://github.com/numpy/numpy) from 1.23.1 to 1.23.2.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](https://github.com/numpy/numpy/compare/v1.23.1...v1.23.2)

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

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requirements/requirements.txt

@@ -1,4 +1,4 @@
-numpy == 1.23.1
+numpy == 1.23.2
 scipy == 1.9.0
 pandas == 1.4.3
 matplotlib == 3.5.2