ci: update python version for runners of v3.9 and above

Author: canewsin

.github/workflows/tests.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       max-parallel: 16
       matrix:
-        python-version: ["3.7", "3.8", "3.9"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - name: Checkout ZeroNet