Update python-package.yml

py versions update

Author: Mark Schultz

.github/workflows/python-package.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.13"]
     steps:
     - uses: actions/checkout@v2 # check out source code to working directory
     - name: Set up Python ${{ matrix.python-version }}