deps: bump ed25519-dalek from 2.2.0 to 3.0.0

Bumps [ed25519-dalek](https://github.com/dalek-cryptography/curve25519-dalek) from 2.2.0 to 3.0.0.
- [Release notes](https://github.com/dalek-cryptography/curve25519-dalek/releases)
- [Changelog](https://github.com/dalek-cryptography/curve25519-dalek/blob/3.0.0/CHANGELOG.md)
- [Commits](dalek-cryptography/curve25519-dalek@ed25519-2.2.0...3.0.0)

---
updated-dependencies:
- dependency-name: ed25519-dalek
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]