build(deps): bump requests from 2.32.3 to 2.32.4 in /book/src

Bumps [requests](https://github.com/psf/requests) from 2.32.3 to 2.32.4.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.32.3...v2.32.4)

---
updated-dependencies:
- dependency-name: requests
  dependency-version: 2.32.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

book/src/requirements.txt

@@ -13,5 +13,5 @@ pylint==3.3.7
 pytest==8.4.0
 pytest-cov==5.0.0
 pytype==2024.9.13
-requests==2.32.3
+requests==2.32.4
 yapf==0.43.0