chore: add Python 3.11 and 3.12 to test matrix

Author: Shu Shen

.github/workflows/pythonapp.yml

@@ -21,7 +21,7 @@ jobs:
       max-parallel: 6
       matrix :
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}