Bump rdflib from 2.3.0 to 2.3.2

Bumps [rdflib](https://github.com/linkeddata/rdflib.js) from 2.3.0 to 2.3.2.
- [Release notes](https://github.com/linkeddata/rdflib.js/releases)
- [Changelog](https://github.com/linkeddata/rdflib.js/blob/main/changes.txt)
- [Commits](linkeddata/rdflib.js@v2.3.0...v2.3.2)

---
updated-dependencies:
- dependency-name: rdflib
  dependency-version: 2.3.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]