Fix major dependencies update workflow file

Editor assessment

The type choice is debatable: a GitHub Actions 'major dependencies update workflow file' is CI infrastructure, so `ci:` would be the more conventional prefix; `build:` typically connotes bundlers, native builds, or dependency manifests. That said, teams draw the line differently. The subject itself is adequate, though 'workflow file' is generic and the actual malfunction — which job failed, why — is unexplained, with no body to compensate. Spec-compliant, mildly ambiguous, and easy to skim past in a log.