ci: Ensure generated workflows do not become stale (#55198)

This ensures that upon workflow removal in Rust code, the corresponding
workflow file will not accidentally stay in the repository.

Release Notes:

- N/A
cafa1fcc48Finn Evers committed on 5/6/2026, 6:50:53 PM· committed by GitHubparentdacf984
1 file changedLine totals unavailable