test on 3.12 instead

Author: pgleeson

.github/workflows/non_omv.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:        
         runs-on: [ubuntu-latest, macos-13, macos-latest ]
-        python-version: [ 3.8, 3.9, "3.10", "3.11" ]
+        python-version: [ 3.9, "3.10", "3.11", "3.12" ]
         exclude:
           - runs-on: macos-latest
             python-version: "3.8"