Add Python 3.14 to CI matrix

Author: Nachtalb

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13"]
+        python-version: ["3.13", "3.14"]
 
     steps:
       - uses: actions/checkout@v4