Release v0.12.0-preview.5

What's Changed

• fix(patch): cherry-pick 643f2c0 to release/v0.12.0-preview.4-pr-12300 to patch version v0.12.0-preview.4 and create version 0.12.0-preview.5 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/12329

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.12.0-preview.4...v0.12.0-preview.5