[indico-web] worker: Install pyOpenSSL

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit c6c77df47530e5bb3e9d6144c627dee2f9e37329
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Tue Dec 10 14:23:57 2019 +0100

    worker: Install pyOpenSSL

 worker/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/worker/Dockerfile b/worker/Dockerfile
index 23356e9..7ddf51f 100644
--- a/worker/Dockerfile
+++ b/worker/Dockerfile
@@ -13,7 +13,7 @@ RUN virtualenv ${INDICO_VIRTUALENV}
 RUN ${pip} install --upgrade pip setuptools && \
     ${pip} install uwsgi raven && \
     ${pip} install indico indico-plugins python-ldap \
-        indico-plugin-payment-stripe cryptography
+        indico-plugin-payment-stripe cryptography pyOpenSSL
 RUN chgrp -R 0 /opt/indico
 
 FROM python:2.7-buster