chore(deps-dev): bump jest-rdf from 1.7.1 to 1.8.0

Bumps [jest-rdf](https://github.com/rubensworks/jest-rdf) from 1.7.1 to 1.8.0.
- [Release notes](https://github.com/rubensworks/jest-rdf/releases)
- [Changelog](https://github.com/rubensworks/jest-rdf/blob/master/CHANGELOG.md)
- [Commits](rubensworks/jest-rdf@v1.7.1...v1.8.0)

---
updated-dependencies:
- dependency-name: jest-rdf
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>