adding testing for 3.13 and prep for removal of 3.9 in future

Author: devsetgo

.github/workflows/testing.yml

@@ -24,7 +24,7 @@ jobs:
       max-parallel: 10
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ["3.12","3.9", "3.10", "3.11"]
+        python-version: ["3.13","3.12","3.11", "3.10", "3.9"]
     steps:
       - uses: actions/checkout@v4
       - name: Wait for PostgreSQL to become ready