Run tests on newer versions of Python

Author: nabla-c0d3

.github/workflows/python-package.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v2