Bump @metamask/snaps-utils from 7.0.4 to 7.8.1

Bumps [@metamask/snaps-utils](https://github.com/MetaMask/snaps) from 7.0.4 to 7.8.1.
- [Release notes](https://github.com/MetaMask/snaps/releases)
- [Commits](https://github.com/MetaMask/snaps/compare/@metamask/snaps-utils@7.0.4...@metamask/snaps-utils@7.8.1)

---
updated-dependencies:
- dependency-name: "@metamask/snaps-utils"
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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