Fix wrong version of python specified in CI

Author: leekeiabstraction

.github/workflows/ci.yml

@@ -143,7 +143,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.09", "3.10", "3.11", "3.12"]
+        python: ["3.9", "3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@v4