update tested version - drop 3.8 as it reached end off life

Author: Sebastian Molenda

.github/workflows/run-tests.yml

@@ -26,7 +26,7 @@ jobs:
       max-parallel: 1
       fail-fast: true
       matrix:
-        python: [3.8.18, 3.9.18, 3.10.13, 3.11.6]
+        python: [3.9.21, 3.10.16, 3.11.11, 3.12.9, 3.13.2]
     timeout-minutes: 5
     steps:
       - name: Checkout repository