chore(deps): update jsonschema requirement

Updates the requirements on [jsonschema](https://github.com/python-jsonschema/jsonschema) to permit the latest version.
- [Release notes](https://github.com/python-jsonschema/jsonschema/releases)
- [Changelog](https://github.com/python-jsonschema/jsonschema/blob/main/CHANGELOG.rst)
- [Commits](python-jsonschema/jsonschema@v4.4.0...v4.21.1)

---
updated-dependencies:
- dependency-name: jsonschema
  dependency-type: direct:production
...

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

requirements/base.txt

@@ -34,7 +34,7 @@ tabulate >=0.8.9,<0.10
 polyleven >=0.8,<0.9
 
 # JSON schema.
-jsonschema >=4.4.0,<4.21
+jsonschema >=4.4.0,<4.22
 
 # Type checking
 typeguard >=2.13.3,<5.0