Update code.yml

Updated tests to allow for Django 4.2

.github/workflows/code.yml

@@ -51,7 +51,7 @@ jobs:
       fail-fast: true
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
-        django-version: ["==3.1.*", "==3.2.*", "==4.0.*", "==4.1.*"]
+        django-version: ["==3.1.*", "==3.2.*", "==4.0.*", "==4.1.*", "==4.2.*"]
         # always use latest Postgres b/c the point here is to test Django compatibility
         postgres-version: [latest]
         exclude:  # Django v4.1 supports Python 3.11