Add case_conflicts.py to the update_hub add plugins/themes/authors sc…

…ript.

This will prevent the addition of new files where the only difference between it and an existing file is the case of the filename.

.github/workflows/update_hub.yml

@@ -45,6 +45,7 @@ jobs:
         run: |
           cd .github/scripts
           python3 ./update_releases.py --all
+          python3 ./case_conflicts.py
           cd ../..
           git add .
           git commit -m "Add new plugins, themes and authors" || echo "nothing to commit"