Bump referencing from 0.30.2 to 0.31.0

Bumps [referencing](https://github.com/python-jsonschema/referencing) from 0.30.2 to 0.31.0.
- [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@v0.30.2...v0.31.0)

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

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

requirements.txt

@@ -160,7 +160,7 @@ PyJWT[crypto]==2.8.0
 PyNaCl==1.5.0
 pysocks==1.7.1
 PyYAML==6.0.1
-referencing==0.30.2
+referencing==0.31.0
 requests-oauthlib==1.3.1
 rpds-py==0.10.6
 rsa==4.9