Bump suite from a3756db to c71f81d

Bumps [suite](https://github.com/python-jsonschema/referencing-suite) from `a3756db` to `c71f81d`.
- [Release notes](https://github.com/python-jsonschema/referencing-suite/releases)
- [Commits](python-jsonschema/referencing-suite@a3756db...c71f81d)

---
updated-dependencies:
- dependency-name: suite
  dependency-version: c71f81d4a36bfd29c4d76a8c4e75bcbb3481024d
  dependency-type: direct:production
...

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Author: dependabot[bot]