[adoptium] Enable the preview of Github models for the Adoptium organization

Summary

We would like to trial the public preview of Github models: https://github.com/marketplace/models

From https://github.com/orgs/community/discussions/159087, the steps to enable this preview are:

GitHub Models is built into every repo, for every developer—whether you're working solo or as part of a large organization. Getting started is simple:

Enable GitHub Models in your repository or organization or enterprise
Create your first .prompt.yml file
Start testing models directly in your workflow

Not sure how to do this in the otterdog config file, or if that is possible at the moment. Please advise on how to do this, or if its a manual setting that can be changed in the Github admin GUI.

This was discussed in a recent Adoptium PMC call and is something we'd like to try out under the Adoptium organization.

Steps to reproduce

(How one can reproduce the issue - this is very important)

What is the current bug behavior?

(What actually happens)

What is the expected correct behavior?

(What you should see instead)

Relevant logs and/or screenshots

(Add a link to or paste any relevant logs - please use code blocks (```) to format console output, logs, and code, as it's very hard to read otherwise.)

Priority

Urgent
High
Medium
Low

Severity

Blocker
Major
Normal
Low

Impact

(What is the impact of this issue? Is it blocking a release? Are there any time constraints?, for example: "We have a release tomorrow") We currently have a GSoC contributor that will benefit immediately by having this enabled. Committers in the projects also want the ability to experiment with this preview.