Update python versions in tests to include up to 3.13

Author: ponyisi

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
   test:
     strategy:
       matrix:
-        python-version: [3.9, "3.10"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
     runs-on: ubuntu-latest
 
     steps: