ollama v0.21.0

## What's Changed * launch/openclaw: fix --yes flag behaviour to skip channels configuration by @hoyyeva in https://github.com/ollama/ollama/pull/15589 * cmd/launch: add Copilot CLI integration by @scaryrawr in https://github.com/ollama/ollama/pull/15583 ## New Contributors * @scaryrawr made their first contribution in https://github.com/ollama/ollama/pull/15583 **Full Changelog**: https://github.com/ollama/ollama/compare/v0.20.8-rc0...v0.21.0