Bump braces and react-native in /example

Bumps [braces](https://github.com/micromatch/braces) to 3.0.3 and updates ancestor dependency [react-native](https://github.com/facebook/react-native/tree/HEAD/packages/react-native). These dependencies need to be updated together.


Updates `braces` from 2.3.2 to 3.0.3
- [Changelog](https://github.com/micromatch/braces/blob/master/CHANGELOG.md)
- [Commits](https://github.com/micromatch/braces/commits/3.0.3)

Updates `react-native` from 0.68.7 to 0.75.3
- [Release notes](https://github.com/facebook/react-native/releases)
- [Changelog](https://github.com/facebook/react-native/blob/main/CHANGELOG-pre-070.md)
- [Commits](https://github.com/facebook/react-native/commits/v0.75.3/packages/react-native)

---
updated-dependencies:
- dependency-name: braces
  dependency-type: indirect
- dependency-name: react-native
  dependency-type: direct:production
...

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

Author: dependabot[bot]