Merge pull request #3368 from jupyterhub/dependabot/pip/certifi-2025.8.3

Bump certifi from 2025.6.15 to 2025.8.3

Author: manics

requirements.txt

@@ -6,7 +6,7 @@
 #
 cachetools==5.5.2
     # via google-auth
-certifi==2025.6.15
+certifi==2025.8.3
     # via
     #   kubernetes
     #   requests