Update dependencies

Mirrors/supersedes 0e67da82e2

requirements.txt

@@ -1,26 +1,26 @@
 diff-match-patch==20181111
 dj-database-url==0.5.0
 dj-static==0.0.6
-Django==3.0.3
+Django==3.0.7
 django-debug-toolbar==2.2
 django-ical==1.7.0
 django-recaptcha==2.0.6
-django-registration-redux==2.7
+django-registration-redux==2.8
 django-reversion==3.0.7
-django-widget-tweaks==1.4.5
+django-widget-tweaks==1.4.8
 gunicorn==20.0.4
-icalendar==4.0.4
-lxml==4.5.0
-premailer==3.6.1
-psycopg2-binary==2.8.4
+icalendar==4.0.6
+lxml==4.5.1
+premailer==3.7.0
+psycopg2-binary==2.8.5
 PyPDF2==1.26.0
 PyPOM==2.2.0
-pytz==2019.3
+pytz==2020.1
 raven==6.10.0
 requests==2.23.0
 selenium==3.141.0
 simplejson==3.17.0
 whitenoise==5.0.1
-reportlab==3.4.0
-z3c.rml==3.9.1
-imgurpython==1.1.7
+reportlab==3.5.42
+z3c.rml==3.10.0
+imgurpython==1.1.7