expect docs CI failed, the autolabeler works as expected.

I also add an input parameter commitish to fix the errors per the solution of release-drafter/release-drafter#1125 (comment)

TL;DR We need to use a different action to generate labels in a PR.

The issue you linked to has diverged into 2 issues.

1. release-drafter cannot create a drafted release in a PR event (including pull_request_target). This is why the error occurs.
2. release-drafter's auto-labeler feature needs to be run in a PR event.

But there is currently no way differentiate which feature of release-drafter you want to use in specified event trigger. Using the commitish advice will fix the error in a PR event, but it will prevent auto-labeler from doing what it supposed to.

Per your comments, I added a new action to autolabeler. From my test, the event pull_request_target can not trigger run so I changed it to pull_request and it works.

It would be work to keep or remove commitish from reusable workflow.

Is that why commitish is hard-coded in the reusable workflow?

I think so. commitish has default value in reusable workflow, it can be overwrite when the default branch is not main, for example: master