Hi @kjenney and sorry for the late reply.
I suspect you probably already figured out the answer, here it is anyway for the record. The Expected status can happen if the admin of a GitHub repo configured a check to be required. In this case “SonarCloud” appears to be required. However, we changed the way we decorate, and the new mechanism uses a different name “SonarCloud Code Analysis”.
The fix is for the GitHub user with admin rights on the repo to change the required check, dropping the old one and adding the new.