Use ruff as the code formatter in place of black and isort since it is
much faster, and as projects like PyTorch and ONNX have adopted ruff
format as well.
This PR include only auto-fixed changes in formatting.
1. Move azcopy environment variables out of script and into an Azure DevOps variable group. Move towards consolidating the managed identity client ID definition in one place.
2. Disable azcopy overwrite. We don't want to accidentally change the files for a released package.
- Update method for uploading to Azure storage to use managed identity.
- Allow helper script tasks to be split across different calls.
- Rewrite helper script in Python.
Motivation:
Recently the Azure storage account configuration was changed and now the old way of uploading to it no longer works.
