chore(deps-dev): bump scipy-stubs in the scipy group

Bumps the scipy group with 1 update: [scipy-stubs](https://github.com/scipy/scipy-stubs).


Updates `scipy-stubs` from 1.16.2.0 to 1.16.2.3
- [Release notes](https://github.com/scipy/scipy-stubs/releases)
- [Commits](https://github.com/scipy/scipy-stubs/compare/v1.16.2.0...v1.16.2.3)

---
updated-dependencies:
- dependency-name: scipy-stubs
  dependency-version: 1.16.2.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: scipy
...

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

requirements-dev.txt

@@ -24,7 +24,7 @@ time-machine==2.19.0
 nbconvert==7.16.6
 
 # mypy types
-scipy-stubs==1.16.2.0  # keep in sync with `scipy` in `requirements-hyperopt.txt`
+scipy-stubs==1.16.2.3  # keep in sync with `scipy` in `requirements-hyperopt.txt`
 types-cachetools==6.2.0.20250827
 types-filelock==3.2.7
 types-requests==2.32.4.20250913