Add Python 3.9 support to test suite

Rust Saiargaliev · codingjoe · commit b0d991814d2a · 2020-10-26T08:58:19.000+01:00
https://docs.python.org/3.9/whatsnew/3.9.html
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -36,6 +36,7 @@ jobs:
           - 3.6
           - 3.7
           - 3.8
+          - 3.9
         django-version:
           - 2.2.*
           - 3.1.*
diff --git a/setup.cfg b/setup.cfg
@@ -23,6 +23,7 @@ classifier =
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Framework :: Django
     Framework :: Django :: 2.2
     Framework :: Django :: 3.1

-Original file line number
+Diff line change
           - 3.6
           - 3.7
           - 3.8
 +          - 3.9
         django-version:
           - 2.2.*
           - 3.1.*