Replace workaround for actions/setup-python#508 with 'allow-prereleases'

Author: jaraco

.github/workflows/main.yml

@@ -45,9 +45,6 @@ jobs:
         - "3.7"
         - "3.11"
         - "3.12"
-        # Workaround for actions/setup-python#508
-        dev:
-        - -dev
         platform:
         - ubuntu-latest
         - macos-latest
@@ -68,7 +65,8 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: ${{ matrix.python }}${{ matrix.dev }}
+          python-version: ${{ matrix.python }}
+          allow-prereleases: true
       - name: Install tox
         run: |
           python -m pip install tox