Test with Python 3.12

.github/workflows/build.yml

@@ -43,13 +43,14 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
       - uses: actions/checkout@v3.5.2
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4.6.1
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Install Poetry
         run: |
           python -m pip install --upgrade pip