Removes python 3.8 and adds 3.13 and 3.14.

Author: fakufaku

.github/workflows/pythonpackage.yml

@@ -11,7 +11,7 @@ jobs:
       max-parallel: 12
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
     - uses: actions/checkout@v3
     - name: Checkout submodules