moved site_list.py to scripts/site-list.py

This script is only executed by the GitHub workflow. Keeping it inside
the scripts directory makes the project's directory cleaner. Additionally,
it decreases the chance of contributers executing the script even though
its harmless.

.github/workflows/update-site-list.yml

@@ -29,8 +29,8 @@ jobs:
           python-version: '3.x' 
 
       # Execute the site_list.py Python script
-      - name: Execute site_list.py
-        run: python site_list.py
+      - name: Execute site-list.py
+        run: python scripts/site-list.py
 
        # Commit any changes made by the script
       - name: Commit files