fix: add referencing dependency to resolve deptry CI failure

- Added referencing>=0.30.0 dependency to pyproject.toml
- Required for jsonschema 4.18+ RefResolver migration
- Regenerated poetry.lock with new dependency

Co-Authored-By: AJ Steers <[email protected]>

Author: devin-ai-integration[bot]

poetry.lock

@@ -45,6 +45,7 @@ Jinja2 = "~3.1.2"
 jsonref = "~0.2"
 jsonschema = ">=4.17.3,<5.0"
 packaging = "*"  # Transitive dependency used directly in code
+referencing = ">=0.30.0"  # Required for jsonschema 4.18+ RefResolver migration
 pandas = "2.2.3"
 psutil = "6.1.0" # TODO: Remove if unused
 pydantic = "^2.7"