Release v0.20.1

What's Changed

• fix(patch): cherry-pick 3f5f030 to release/v0.20.0-pr-14843 to patch version v0.20.0 and create version 0.20.1 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/15002

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.20.0...v0.20.1