upgraded django 2.2 to latest version to address security concerns

fpierfed · fpierfed · commit 54f658095fa4 · 2021-05-17T10:14:14.000+02:00
diff --git a/requirements.txt b/requirements.txt
@@ -95,7 +95,7 @@ django-treebeard==4.4
     # via
     #   -r requirements.in
     #   django-cms
-django==2.2.19
+django==2.2.23
     # via
     #   -r requirements.in
     #   cmsplugin-filer
