Merge pull request jupyterhub#2756 from jupyterhub/dependabot/pip/images/analytics-publisher/urllib3-1.26.17

Bump urllib3 from 1.26.12 to 1.26.17 in /images/analytics-publisher

Author: manics

images/analytics-publisher/requirements.txt

@@ -90,5 +90,5 @@ six==1.16.0
     # via
     #   google-auth
     #   python-dateutil
-urllib3==1.26.12
+urllib3==1.26.17
     # via requests