chore(deps): bump serde_ipld_dagcbor from 0.6.4 to 0.7.0 in /rust (#207)

Bumps [serde_ipld_dagcbor](https://github.com/ipld/serde_ipld_dagcbor) from 0.6.4 to 0.7.0.
- [Changelog](https://github.com/ipld/serde_ipld_dagcbor/blob/master/CHANGELOG.md)
- [Commits](ipld/serde_ipld_dagcbor@v0.6.4...v0.7.0)

---
updated-dependencies:
- dependency-name: serde_ipld_dagcbor
  dependency-version: 0.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

rust/Cargo.lock

@@ -8,6 +8,6 @@ hex = "0.4.3"
 ipld-core = { version = "0.4.3", features = ["serde"] }
 ipld-dagpb = "0.2.2"
 multihash-codetable = { version = "0.2.2", features = ["sha2"] }
-serde_ipld_dagcbor = "0.6.4"
+serde_ipld_dagcbor = "0.7.0"
 serde_ipld_dagjson = "0.2.2"
 thiserror = "2.0.7"