Add Python 3.13 to tests

Author: cvzi

Diff for: .github/workflows/pythonTests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 8
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9, "3.10", "3.11", "3.12-dev"]
+        python-version: [3.6, 3.7, 3.8, 3.9, "3.10", "3.11", "3.12", "3.13-dev"]
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}