syncpack was failing without logs

originally, the intent behind using syncpack was to make sure our dependencies were compatible. but it's been failing on all of our PRs without any logs, and it's difficult to recreate locally (example): https://github.com/googleapis/google-cloud-node-core/actions/runs/22781070422/job/66086734223?pr=920

I think right now it's doing more harm than good but so I'm going to delete it. but, i still think we should come up with some replacement to make sure our dependencies are in sync.

Inizia esaminando il fallimento di syncpack nel job GitHub Actions collegato e l’attuale workflow di dependency-check. Definisci una sostituzione che mantenga sincronizzate le dipendenze e fornisca log utili; il lavoro è completato quando il controllo viene eseguito in modo affidabile sulle pull request e può essere riprodotto localmente.

Scritto dal modello di indicizzazione a partire dal testo della issue.