Bump requests from 2.32.3 to 2.32.4 in /example

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](https://github.com/psf/requests/compare/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>

README.md

@@ -164,3 +164,7 @@ on the detected signposting metadata and produces output similar to the one show
 ## License
 
 Licensed under the MIT License.
+
+## References
+
+You can cite this library using this DOI: [10.5281/zenodo.15008517](https://doi.org/10.5281/zenodo.15008517).

example/requirements.txt

@@ -2,14 +2,14 @@ asgiref==3.8.1
 beautifulsoup4==4.12.3
 certifi==2024.8.30
 charset-normalizer==3.4.0
-django==5.1.4
+django==5.1.7
 django-json-ld==0.0.5
 django-signposting==0.10.0
 httplink==0.2.0
 idna==3.10
 pyparsing==3.2.0
 rdflib==7.1.1
-requests==2.32.3
+requests==2.32.4
 rfc3987==1.3.8
 signposting==0.9.9
 soupsieve==2.6