Bump scipy from 1.16.2 to 1.16.3 in /demos (#1661)

Bumps [scipy](https://github.com/scipy/scipy) from 1.16.2 to 1.16.3.
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.16.2...v1.16.3)

---
updated-dependencies:
- dependency-name: scipy
  dependency-version: 1.16.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

demos/moderator/requirements-dev.txt

@@ -4,7 +4,7 @@ pyyaml==6.0.3
 numpy==2.3.4
 pandas==2.3.3
 scikit-learn==1.7.2
-scipy==1.16.2
+scipy==1.16.3
 
 
 flake8==7.3.0

demos/moderator_bot/requirements-dev.txt

@@ -16,7 +16,7 @@ pytest==8.4.2
 pytest-aiohttp==1.1.0
 pyyaml==6.0.3
 scikit-learn==1.7.2
-scipy==1.16.2
+scipy==1.16.3
 six==1.17.0
 slack_sdk==3.37.0
 urllib3==2.5.0