Test against Python 3.14 in GitHub Actions

Author: vstoykov

.github/workflows/python.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.13", "3.12", "3.11", "3.10", "3.9", "3.8"]
+        python-version: ["3.14.0-rc.2", "3.13", "3.12", "3.11", "3.10", "3.9", "3.8"]
 
     steps:
     - uses: actions/checkout@v5