[damned-lies] Allow using Django 3.0.+

[Claude Paroz <claudep src gnome org>]

commit e356d8499779af2f0147239f9208a84dd75809e2
Author: Claude Paroz <claude 2xlibre net>
Date:   Fri Dec 20 16:22:18 2019 +0100

    Allow using Django 3.0.+

 requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/requirements.txt b/requirements.txt
index 80bd9c15..b347196c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-django>=2.2.9,<3.0
+django>=2.2.9,<3.1
 pillow
 mysqlclient
 social-auth-app-django==3.1.0