Drop python 3.5 testing

* We're testing css classes and these are in an unordered dict in 3.5.

Author: smithdc1

.github/workflows/CI.yml

@@ -13,13 +13,9 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8]
+        python-version: [3.6, 3.7, 3.8]
         django-version: [2.2.*, 3.0.*]
         crispy-version: [1.9.*]
-        exclude:
-          # exclude python 3.5 with django v3+
-          - python-version: 3.5
-            django-version: 3.0.*
 
     steps:
     - uses: actions/checkout@v2