Merge branch 'bump-Django' into 'master'

Bump Python requirement Django to 3.2.4

See merge request !1361

base/requirements.txt

 boto3==1.17.11
 cryptography==3.4.7
-Django==3.2.3
+Django==3.2.4
 elasticsearch==6.8.1
 lxml==4.6.3
 psycopg2-binary==2.8.6