Run tests on Python 3.14

Author: jschlyter

.github/workflows/test.yml

@@ -27,6 +27,7 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.14"
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}