chore(deps): bump google-genai from 1.21.1 to 1.23.0 (#748)

Bumps [google-genai](https://github.com/googleapis/python-genai) from 1.21.1 to 1.23.0.
- [Release notes](https://github.com/googleapis/python-genai/releases)
- [Changelog](https://github.com/googleapis/python-genai/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-genai@v1.21.1...v1.23.0)

---
updated-dependencies:
- dependency-name: google-genai
  dependency-version: 1.23.0
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]