Test against Python 3.12

Author: jtpio

.github/workflows/build.yml

@@ -118,7 +118,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python: ['3.8', '3.11']
+        python: ['3.8', '3.11', '3.12']
         include:
           - python: '3.8'
             dist: 'notebook*.tar.gz'