Bump jsonschema from 3.2.0 to 4.0.0

Bumps [jsonschema](https://github.com/Julian/jsonschema) from 3.2.0 to 4.0.0.
- [Release notes](https://github.com/Julian/jsonschema/releases)
- [Changelog](https://github.com/Julian/jsonschema/blob/main/CHANGELOG.rst)
- [Commits](python-jsonschema/jsonschema@v3.2.0...v4.0.0)

---
updated-dependencies:
- dependency-name: jsonschema
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

poetry.lock

@@ -26,7 +26,7 @@ apispec_webframeworks = "^0.5.2"
 pytest = "^6.2"
 black = {version = "^20.8b1",allow-prereleases = true}
 pytest-cov = "^2.11.1"
-jsonschema = "^3.2.0"
+jsonschema = "^4.0.0"
 pylint = "^2.10.2"
 sphinx = "^4.1.1"
 sphinx-autoapi = "^1.8.1"