new uwsgi version

requirements/production.txt

 # Pro-tip: Try not to put anything here. There should be no dependency in
 # Pro-tip: Try not to put anything here. There should be no dependency in
 # production that isn't in development.
 # production that isn't in development.
 -r base.txt
 -r base.txt
-uWSGI==2.0.10
+uWSGI==2.0.13.1