Update Python versions in CI

Author: danielballan

.github/workflows/testing.yml

@@ -16,7 +16,7 @@ jobs:
         - 27017:27017
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
       fail-fast: false
     steps: