Bump certifi from 2022.12.7 to 2023.7.22 in /requirements

Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.12.7 to 2023.7.22.
- [Commits](https://github.com/certifi/python-certifi/compare/2022.12.07...2023.07.22)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>

requirements/checkdocs.txt

@@ -10,7 +10,7 @@ babel==2.10.3
     # via sphinx
 build==0.8.0
     # via pip-tools
-certifi==2022.12.7
+certifi==2023.7.22
     # via requests
 charset-normalizer==2.1.0
     # via requests

requirements/docs.txt

@@ -10,7 +10,7 @@ babel==2.10.3
     # via sphinx
 build==0.8.0
     # via pip-tools
-certifi==2022.12.7
+certifi==2023.7.22
     # via requests
 charset-normalizer==2.1.0
     # via requests