Correct chdir path in uWSGI conf

sites/sandbox/deploy/supervisord/latest.conf

@@ -11,7 +11,7 @@ command=/var/www/oscar/virtualenvs/latest/bin/uwsgi
         --harakiri-verbose
         --master
         --max-requests 500
-directory=/var/www/oscar/builds/latest/builds/latest
+directory=/var/www/oscar/builds/latest/sites/sandbox
 autostart=true
 autorestart=true
 stdout_logfile=/var/www/oscar/logs/latest/uwsgi.log