Bump referencing from 0.34.0 to 0.35.1

Bumps [referencing](https://github.com/python-jsonschema/referencing) from 0.34.0 to 0.35.1.
- [Release notes](https://github.com/python-jsonschema/referencing/releases)
- [Changelog](https://github.com/python-jsonschema/referencing/blob/main/docs/changes.rst)
- [Commits](python-jsonschema/referencing@v0.34.0...v0.35.1)

---
updated-dependencies:
- dependency-name: referencing
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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