Dropping very old non-LTS versions of Django from CI [#376]

Author: Carl Crowder

.github/workflows/build.yml

@@ -73,7 +73,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [3.7, 3.8, 3.9]
-        django-version: [3.2, 3.1, "3.0", "2.0", "2.2", "1.11"]
+        django-version: [3.2, 3.1, "3.0", "2.2"]
 
     steps:
       - uses: actions/checkout@v3