The github actions API is currently undergoing some kind of outage - and has been for the last 12-14 hours (from what I can see). This particular issue seems to impact how we can retrieve results from various runs. I am working towards a workaround that will let us move past this.
GitHub is aware of the issue (see: https://github.community/t/no-longer-able-to-list-in-progress-builds-via-the-api/244175) and are working towards a fix. Sorry for the inconvenience.