Add Python 3.13 to the CI (#268)

.github/workflows/ci.yaml

@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4