build(deps): bump certifi from 2023.5.7 to 2024.7.4 in /docs

Bumps [certifi](https://github.com/certifi/python-certifi) from 2023.5.7 to 2024.7.4.
- [Commits](certifi/python-certifi@2023.05.07...2024.07.04)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -10,7 +10,7 @@ alabaster==0.7.13
     # via sphinx
 babel==2.11.0
     # via sphinx
-certifi==2023.5.7
+certifi==2024.7.4
     # via requests
 charset-normalizer==2.0.12
     # via requests