[Zero Trust] Update GitHub identity

[jillesme]

Summary

When working with Zero Trust, I added a GitHub identity /w organization policy and kept getting access denied. It turns out that I tried to authenticate before being part of the organization, which caused access denied even after I become part of it.

This call-out is to hopefully prevent someone else from suffering the same mistake. Even though it's quite the edge case.

Screenshots (optional)

Documentation checklist

I don't think this is changelog worthy but please correct me if I am wrong.

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• The change adheres to the documentation style guide.