labeller action seems to have issues with forks

[kyteinsky]

The configuration file (path: .github/labeler.yml) was not found locally, fetching via the api
Error: HttpError: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#set-labels-for-an-issue
Error: Resource not accessible by integration - https://docs.github.com/rest/issues/labels#set-labels-for-an-issue

didn't look deep into it, encountered here: https://github.com/nextcloud/documentation/actions/runs/33291126664/job/99428317583?pr=15495
related: actions/labeler#814