Fix bug with truss push with non-draft.

[squidarth]

Summary

There is an issue right now, where if you do:

$ truss push --publish

with a model that already exists, the log link returned is borked. This is because the create_model_from_truss, and create_model_version_from_truss GraphQL mutations have different return values.

This PR fixes that.

Testing

Ran truss push --publish from command line, with brand new model, and with one that already exists:

 $ poetry run truss push examples/truss-public-gh-repo-test/ --publish
? 🎮 Which remote do you want to connect to? sid-prod
Compressing... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:00
Uploading... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:00
✨ Model test-200 was successfully pushed ✨
🪵  View logs for your deployment at https://app.baseten.co/models/WB56bb0/versions/qrjoo93/logs
? 🗂  Open logs in a new tab? No

[bolasim]

you don't need to do this. You already have model_id on line 152

[squidarth]

good point