remove outdated python version

Author: mam10eks

.github/workflows/tests.yml

@@ -55,7 +55,7 @@ jobs:
     timeout-minutes: 15
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4