MantisAI/sieves: v1.0.1: Migrate `pydantic-ai` to v1; discourage `marker-pdf` usage

✨ New features and improvements Migrate pydantic-ai support to v1 🔴 Bug fixes - ⚠️ Backwards incompatibilities Don't install marker-pdf when installing sieves[ingestion]. We chose to do this as marker-pdf (1) comes with outdated LLM-related utilities that blocked the pydantic-ai migration and (2) we want to discourage usage of marker-pdf in favor of docling, which has better support in sieves. If you still want to use sieves with marker-pdf, you can install the latter manually, it is still supported. 📖 Documentation and examples - 👥 Contributors @rmitsch Full Changelog: https://github.com/MantisAI/sieves/compare/v1.0.0...v1.0.1