build(deps-dev): bump @react-native-community/cli in /example

Bumps [@react-native-community/cli](https://github.com/react-native-community/cli/tree/HEAD/packages/cli) from 19.0.0 to 20.0.2.
- [Release notes](https://github.com/react-native-community/cli/releases)
- [Changelog](https://github.com/react-native-community/cli/blob/main/packages/cli/CHANGELOG.md)
- [Commits](https://github.com/react-native-community/cli/commits/v20.0.2/packages/cli)

---
updated-dependencies:
- dependency-name: "@react-native-community/cli"
  dependency-version: 20.0.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]