chore(deps): bump ipld-dagpb from 0.2.1 to 0.2.2 in /rust

Bumps [ipld-dagpb](https://github.com/ipld/rust-ipld-dagpb) from 0.2.1 to 0.2.2.
- [Commits](ipld/rust-ipld-dagpb@v0.2.1...v0.2.2)

---
updated-dependencies:
- dependency-name: ipld-dagpb
  dependency-version: 0.2.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]