When uploading an addon using the API (https://addons-server.readthedocs.io/en/latest/topics/api/signing.html) there is no way to upload the source files automatically.

Steps:

1. push new version of the addon to repo
2. automated deployment deploys version to the mozilla store using the api
3. I navigate to the developer hub and upload the sources manually

It would be nice to have an api for uploading the source files in order to reduce manual intervention.