Bumps [github.com/google/trillian](https://github.com/google/trillian) from 1.4.0 to 1.4.1.
- [Release notes](https://github.com/google/trillian/releases)
- [Changelog](https://github.com/google/trillian/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/trillian/compare/v1.4.0...v1.4.1

)

---
updated-dependencies:
- dependency-name: github.com/google/trillian
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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