Bump github.com/swift-libp2p/swift-multicodec from 0.0.7 to 0.0.8

Bumps [github.com/swift-libp2p/swift-multicodec](https://github.com/swift-libp2p/swift-multicodec) from 0.0.7 to 0.0.8.
- [Commits](swift-libp2p/swift-multicodec@0.0.7...0.0.8)

---
updated-dependencies:
- dependency-name: github.com/swift-libp2p/swift-multicodec
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]