Merge pull request #99 from ecmwf/dependabot/pip/ci/certifi-2024.7.4

Bump certifi from 2023.7.22 to 2024.7.4 in /ci

Author: shahramn

ci/requirements-docs.txt

@@ -8,7 +8,7 @@ alabaster==0.7.12
     # via sphinx
 babel==2.9.1
     # via sphinx
-certifi==2023.7.22
+certifi==2024.7.4
     # via requests
 charset-normalizer==3.3.2
     # via requests