Add Python 3.14 to test matrix

Author: acdha

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+                python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
         steps:
             - uses: actions/checkout@v4
             - name: Set up Python ${{ matrix.python-version }}