Library generation failed (f898e26)

See [failed job](https://github.com/googleapis/google-cloudevents-java/actions/runs/17146737281)

Start with the linked failed GitHub Actions job for generation run f898e26 and inspect its failure output. Trace the reported generation failure to the relevant project entry point, then rerun the job to confirm that library generation completes successfully.

索引モデルが issue の本文から書いたものです。