allow-prereleases: true to use Python 3.14 rc

Author: peterjc

.github/workflows/test.yml

@@ -9,6 +9,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        allow-prereleases: true
     steps:
     - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}