Merge pull request #3775 from jupyterhub/dependabot/pip/images/singleuser-sample/urllib3-2.6.0

Bump urllib3 from 2.5.0 to 2.6.0 in /images/singleuser-sample

Author: manics

images/singleuser-sample/requirements.txt

@@ -323,7 +323,7 @@ tzdata==2025.2
     # via arrow
 uri-template==1.3.0
     # via jsonschema
-urllib3==2.5.0
+urllib3==2.6.0
     # via requests
 wcwidth==0.2.14
     # via prompt-toolkit