OPS: Avoid django python conflict in testing matrix

Author: thclark

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python: ['3.9', '3.10', '3.11']
+        python: ['3.10', '3.11', '3.12']
         os: [ubuntu-latest] # [ubuntu-latest, windows-latest, macos-latest] for full coverage but this gets expensive quickly
     runs-on: ${{ matrix.os }}
 

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = {py39,py310,py311}-dj{32,42,50}-{sqlite,postgres}
+envlist = {py310,py311,py312}-dj{32,42,50}-{sqlite,postgres}
 isolated_build = True
 
 [testenv]
@@ -21,6 +21,6 @@ deps =
 
 [gh-actions]
 python =
-    3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312