support deploying to DBX UC Volumes

[neontty]

1. (temporary) mangle files under the job/ directory to find and replace DBFS prefix with UC Volume prefix given by user
2. add logic to deployment to use one API vs other for uploading artifacts
3. add tests

in the future we will deprecate the option to provide the UC path and IDE should generate correct UC paths by default. During transition this shouldn't hurt as there wouldn't be any dbfs paths to replace anyway.