it may not have permission to write on the repository itself, nor should it.
see also [forgejo/runner #406](https://code.forgejo.org/forgejo/runner/pulls/406) Reviewed-on: https://code.forgejo.org/forgejo/end-to-end/pulls/448 Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org> Co-authored-by: gratux <gratux@noreply.code.forgejo.org> Co-committed-by: gratux <gratux@noreply.code.forgejo.org>