fix: Various fixes for Open API

[hmacdonald-verta]

Impact and Context

After releasing the first alpha client release, I was able to do e2e testing. Found some issues that I'm resolving here:

• The artifact key no longer has .json in the name because ERs can't have .s in the artifact key names
• Failed output verification now throws an error instead of a warning (I wrote a whole ADR for that and forgot to update the code)
• Removed recwarn from tests now that there's no warnings
• Marked new client alpha release for the changes
• Added comment reminding users that they need to update their endpoint after logging a schema.

Risks and Area of Effect

Testing

• Unit test
• Deployed to dev env
• Other (explain)

I looked in the pod to verify that the model_schema file is, in fact, model_schema, not model_schema.json.

Reverting

• Contains Migration - Do Not Revert

[github-actions]

Common Code Coverage

There is no coverage information present for the Files changed

Total Project Coverage	15.06%	🍏

[github-actions]

Backend Code Coverage

There is no coverage information present for the Files changed

Total Project Coverage	61.32%	🍏