2.2.0

• Support OpenAPI default and const in schema generation (#247).
• Fix $ref parameter types and double-nullable handling in client generation (#247).
• Fix array response schemas being emitted as plain type aliases (list[...]) which pydantic rejects in response_map — they are now emitted as clientele.schemas.ListResponse subclasses, which support len(), indexing, and iteration directly (#248).
• Fix generated config.py documenting API_BASE_URL as the environment variable name when pydantic-settings reads BASE_URL — the example now uses the correct name (#248).
• Initial CI support for Python 3.15