Bump ed25519-zebra from 3.1.0 to 4.0.3
Bumps [ed25519-zebra](https://github.com/ZcashFoundation/ed25519-zebra) from 3.1.0 to 4.0.3.
- [Release notes](https://github.com/ZcashFoundation/ed25519-zebra/releases)
- [Changelog](https://github.com/ZcashFoundation/ed25519-zebra/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ZcashFoundation/ed25519-zebra/compare/3.1.0...4.0.3)
---
updated-dependencies:
- dependency-name: ed25519-zebra
dependency-type: direct:production
update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <[email protected]>