ollama v0.20.6

## What's Changed * Gemma 4 tool calling ability is improved and updated to use Google's latest post-launch fixes * Parallel tool calling improved for streaming responses * [Hermes agent](https://docs.ollama.com/integrations/hermes) Ollama integration guide is now available * Ollama app is updated to fix image attachment errors ## New Contributors @matteocelani made their first contribution in [#15272](https://github.com/ollama/ollama/pull/15272) **Full Changelog**: https://github.com/ollama/ollama/compare/v0.20.5...v0.20.6