Drop Django 1.11 from tests for now.

Author: joshourisman

tox.ini

@@ -5,14 +5,13 @@
 
 [tox]
 isolated_build = true
-envlist = django{111,20,21,22,30,31,32}
+envlist = django{20,21,22,30,31,32}
 
 [testenv]
 whitelist_extenals = poetry
 deps =
     pytest
     pydantic[email]
-    django111: Django >=1.11, < 2.0
     django20: Django >=2.0, < 2.1
     django21: Django >=2.1, < 2.2
     django22: Django >=2.2, < 3.0