Update test-python.yml using python version 3.x

Author: Simran-MW

.github/workflows/test-python.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.15'
+          python-version: '3.x'
 
       - name: Check Python
         run: |