Bump certifi from 2023.7.22 to 2024.7.4 in /docs (#129)

Bumps [certifi](https://github.com/certifi/python-certifi) from 2023.7.22 to 2024.7.4.
- [Commits](certifi/python-certifi@2023.07.22...2024.07.04)

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

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

docs/requirements.txt

@@ -8,7 +8,7 @@ alabaster==0.7.13
     # via sphinx
 babel==2.12.1
     # via sphinx
-certifi==2023.7.22
+certifi==2024.7.4
     # via requests
 charset-normalizer==3.3.0
     # via requests