Run tests on Python 3.12

Author: michaelarnauts

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-        python-version: [ "3.10", "3.11" ]
+        python-version: [ "3.10", "3.11", "3.12" ]
     steps:
       - name: Check out ${{ github.sha }} from repository ${{ github.repository }}
         uses: actions/checkout@v3