Action only works on workflows triggered by PR

[timo-a]

I would like to use reviewdog in a workflow that is not directly triggered by a Pull Request but only indirectly, by another workflow which is triggered by a PR. I'm trying to copy langchain4j/langchain4j#673 but with reviewdog instead of the google code suggester. Security concerns are the reason to split formatting and suggesting into different workflows. But for all I've tried I couldn't make reviewdog work when the request wasn't triggered by a Pull Request.
Is this by design? Then please consider this a feature request: The action should also work when triggered by workflow_run.
If it is not by design and is actually supposed to work could you please have a look at https://github.com/timo-a/jackson-core/actions/runs/8638440591/job/23682897275?
The logs say reviewdog: this is not PullRequest build.
The workflow is: https://github.com/timo-a/jackson-core/blob/a847f5e655643e98242f40fad57ec6c23dd490c6/.github/workflows/comment-pr.yml and depends on https://github.com/timo-a/jackson-core/blob/a847f5e655643e98242f40fad57ec6c23dd490c6/.github/workflows/receive-pr.yml.
Other Workflows do make a suggestion on timo-a/jackson-core#2 however they are all triggered by a pull_request