Set 'allow-prereleases: true' for actions/setup-python workflow, whic…

…h will allow falling back to pre-release versions of Python when a matching GA version of Python is not available

.github/workflows/pythonpackage.yml

@@ -11,14 +11,15 @@ jobs:
     strategy:
       max-parallel: 6
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12.0-rc.1']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
     - name: Set up Poetry cache for Python dependencies
       uses: actions/cache@v3
       if: startsWith(runner.os, 'Linux')