chore(deps): bump json-schema-for-humans in /docgen/json

Bumps [json-schema-for-humans](https://github.com/coveooss/json-schema-for-humans) from 1.3.4 to 1.5.1.
- [Release notes](https://github.com/coveooss/json-schema-for-humans/releases)
- [Changelog](https://github.com/coveooss/json-schema-for-humans/blob/main/CHANGELOG.md)
- [Commits](coveooss/json-schema-for-humans@v1.3.4...v1.5.1)

---
updated-dependencies:
- dependency-name: json-schema-for-humans
  dependency-version: 1.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docgen/json/requirements.txt

@@ -1 +1 @@
-json-schema-for-humans==1.3.4
+json-schema-for-humans==1.5.1