llm 0.33

Version 0.33 of the llm tool upgraded to OpenAI's Python library version 3.x and changed its HTTP client dependency from httpx to httpx2, providing a more comprehensive fix following a quick 0.32.1 patch. New features include support for the --key parameter in embedding commands, the ability to repeat the --template flag to combine multiple templates together, and a new reasoning_summary option for reasoning-capable response models.