chore(deps-dev): bump @googlemaps/jest-mocks from 2.20.2 to 2.21.4

Bumps [@googlemaps/jest-mocks](https://github.com/googlemaps/js-jest-mocks) from 2.20.2 to 2.21.4.
- [Release notes](https://github.com/googlemaps/js-jest-mocks/releases)
- [Changelog](https://github.com/googlemaps/js-jest-mocks/blob/main/CHANGELOG.md)
- [Commits](googlemaps/js-jest-mocks@v2.20.2...v2.21.4)

---
updated-dependencies:
- dependency-name: "@googlemaps/jest-mocks"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>