Library generation failed (f898e26)

See [failed job](https://github.com/googleapis/google-cloudevents-java/actions/runs/17199772555)

Start with the linked failed job for commit f898e26 and inspect the failing library-generation step and its logs. Identify the repository entry point or configuration named by the job, then reproduce the failure locally if the job provides instructions. Done means the library generation job completes successfully.

Written by the indexing model from the issue text.