upgrade GitHub Action to use Ubuntu 24.04 with Python 3.10.12

Author: justb4

.github/workflows/main.yml

@@ -13,8 +13,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - python-version: 3.10
-          # - python-version: 3.8
+          - python-version: 3.10.12
     steps:
     - name: Checkout ✅
       uses: actions/checkout@v2