Added Python 3.13 for workflow tests

Author: AryazE

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
 
         strategy:
             matrix:
-                python-version: ['3.9', '3.10', '3.11', '3.12']
+                python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
         steps:
             - name: Checkout code