Bump jsonschema from 3.2.0 to 4.1.2

Bumps [jsonschema](https://github.com/Julian/jsonschema) from 3.2.0 to 4.1.2.
- [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...v4.1.2)

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

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

Author: dependabot[bot]

requirements/base.txt

@@ -16,7 +16,7 @@ django-reversion==4.0.0
 djangorestframework==3.12.4
 djmail==2.0.0
 factory_boy>=2.10.0,<4.0
-jsonschema==3.2.0
+jsonschema==4.1.2
 mwoauth==0.3.7
 pillow==8.3.2
 python-dateutil==2.8.2