Update test.yml

Add Django 4.2 to CI, remove Django 4.0 from CI

Author: bckohan

.github/workflows/test.yml

@@ -10,17 +10,15 @@ jobs:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
         django-version:
           - 'Django~=3.2.0' # LTS April 2024
-          - 'Django~=4.0.0' # April 2023
           - 'Django~=4.1.0' # December 2023
+          - 'Django~=4.2.0' # April 2026
         exclude:
-          - python-version: '3.7'
-            django-version: 'Django~=4.0.0'
           - python-version: '3.7'
             django-version: 'Django~=4.1.0'
+          - python-version: '3.7'
+            django-version: 'Django~=4.2.0'
           - python-version: '3.11'
             django-version: 'Django~=3.2.0'
-          - python-version: '3.11'
-            django-version: 'Django~=4.0.0'
 
     steps:
     - uses: actions/checkout@v2