#3205 refactor: Fetch OpenAPI spec with a session Pull request opened by edgarrmondragon on <!date^1754008732^{date_short}|2025-08-01T00:38:52Z> Summary by Sourcery Refactor OpenAPISchema to use a persistent requests.Session for fetching remote OpenAPI specifications and update tests accordingly Enhancements: • Initialize and expose a requests.Session instance in the schema source • Switch _load_remote_spec to use the session’s get method instead of requests.get Tests: • Update tests to patch requests.Session.get instead of requests.get meltano/sdk