build(deps): bump expo from 49.0.13 to 49.0.21

Bumps [expo](https://github.com/expo/expo/tree/HEAD/packages/expo) from 49.0.13 to 49.0.21.
- [Changelog](https://github.com/expo/expo/blob/main/packages/expo/CHANGELOG.md)
- [Commits](https://github.com/expo/expo/commits/HEAD/packages/expo)

---
updated-dependencies:
- dependency-name: expo
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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