Bumps [github.com/cosmos/cosmos-proto](https://github.com/cosmos/cosmos-proto) from 1.0.0-alpha7 to 1.0.0-alpha8.
- [Release notes](https://github.com/cosmos/cosmos-proto/releases)
- [Commits](https://github.com/cosmos/cosmos-proto/compare/v1.0.0-alpha7...v1.0.0-alpha8

)

---
updated-dependencies:
- dependency-name: github.com/cosmos/cosmos-proto
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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