build(deps): bump ed25519 from 2.2.2 to 2.2.3 (#786)

Bumps [ed25519](https://github.com/RustCrypto/signatures) from 2.2.2 to 2.2.3.
- [Commits](RustCrypto/signatures@ed25519/v2.2.2...ed25519/v2.2.3)

---
updated-dependencies:
- dependency-name: ed25519
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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