Bump to Django 3.1.1

Dockerfile

-FROM registry.gitlab.com/arkindex/backend/base:django-3.1-lxml as build
+FROM registry.gitlab.com/arkindex/backend/base:django-3.1.1 as build
 
 RUN mkdir build
 ADD . build
 RUN cd build && python3 setup.py sdist
 
-FROM registry.gitlab.com/arkindex/backend/base:django-3.1-lxml
+FROM registry.gitlab.com/arkindex/backend/base:django-3.1.1
 
 ARG COMMON_BRANCH=master
 ARG COMMON_ID=9855787

Dockerfile.binary

@@ -67,7 +67,7 @@ RUN python -m nuitka \
       arkindex/manage.py
 
 # Start over from a clean setup
-FROM registry.gitlab.com/arkindex/backend/base:django-3.1-lxml as build
+FROM registry.gitlab.com/arkindex/backend/base:django-3.1.1 as build
 
 # Import files from compilation
 RUN mkdir /usr/share/arkindex

base/requirements.txt

 boto3==1.9
 cryptography>=2.8
-Django==3.1
+Django==3.1.1
 elasticsearch==6.2.0
 hiredis==1.0.0
 ijson==2.3