deps(cargo): bump iri-string in the cargo-dependencies group (#49)

Bumps the cargo-dependencies group with 1 update: [iri-string](https://github.com/lo48576/iri-string).


Updates `iri-string` from 0.7.12 to 0.7.13
- [Changelog](https://github.com/lo48576/iri-string/blob/develop/CHANGELOG.md)
- [Commits](lo48576/iri-string@v0.7.12...v0.7.13)

---
updated-dependencies:
- dependency-name: iri-string
  dependency-version: 0.7.13
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: cargo-dependencies
...

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Author: dependabot[bot]