Bump requests from 2.27.1 to 2.32.2 in /demo/python

Bumps [requests](https://github.com/psf/requests) from 2.27.1 to 2.32.2.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.27.1...v2.32.2)

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

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

Author: dependabot[bot]

demo/python/requirements.txt

@@ -1,3 +1,3 @@
 dataclasses-json==0.5.7
-requests==2.27.1
+requests==2.32.2
 iris-pex-embedded-python>=3.0.0