Update justinrainbow/json-schema requirement from ^5.2.10 to ^6.0.0

Updates the requirements on [justinrainbow/json-schema](https://github.com/jsonrainbow/json-schema) to permit the latest version.
- [Release notes](https://github.com/jsonrainbow/json-schema/releases)
- [Changelog](https://github.com/jsonrainbow/json-schema/blob/master/CHANGELOG.md)
- [Commits](jsonrainbow/json-schema@5.2.10...6.0.0)

---
updated-dependencies:
- dependency-name: justinrainbow/json-schema
  dependency-type: direct:production
...

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

composer.json

@@ -13,7 +13,7 @@
         "php": "^8.1",
         "ext-filter": "*",
         "ext-curl": "*",
-        "justinrainbow/json-schema": "^5.2.10",
+        "justinrainbow/json-schema": "^6.0.0",
         "koriym/attributes": "^1.0",
         "koriym/http-constants": "^1.1",
         "koriym/json-schema-faker": "^0.3",