Remove 3.1 support for now

Will add back later

Author: RealOrangeOne

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         python: [3.6, 3.7, 3.8]
-        django: [2.2, 3.0, 3.1]
+        django: [2.2]
         database_url:
           - postgres://runner:password@localhost/project
           - mysql://runner:password@localhost/project

requirements.txt

@@ -1,5 +1,5 @@
 django-model-utils==2.3.1
 django-uuidfield==0.5.0
 jsonfield==1.0.3
-Django>=1.8
+Django>=2.2<3.0
 simplesignals==0.3.0