ci: refresh docs build dependencies (#3348)

Co-authored-by: Ansible Documentation Bot <147556122+ansible-documentation-bot[bot]@users.noreply.github.com>

Author: ansible-documentation-bot[bot]

tests/requirements.txt

@@ -210,7 +210,7 @@ typing-extensions==4.15.0
     #   typing-inspection
 typing-inspection==0.4.2
     # via pydantic
-urllib3==2.5.0
+urllib3==2.6.0
     # via requests
 yamllint==1.37.1
     # via -r tests/requirements.in