Bumps [actions/attest](https://github.com/actions/attest) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/actions/attest/releases)
- [Changelog](https://github.com/actions/attest/blob/main/RELEASE.md)
- [Commits](
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| .. | ||
| ISSUE_TEMPLATE | ||
| prompts | ||
| workflows | ||
| PULL_REQUEST_TEMPLATE.md | ||
| VOUCHED.td | ||
| dependabot.yml | ||
| labeler.yml | ||
| pull.yml | ||