Bump mapboxSdkVersion from 5.3.0 to 5.4.1 in /app
Bump mapboxSdkVersion from 5.3.0 to 5.4.1 in /app

Bumps `mapboxSdkVersion` from 5.3.0 to 5.4.1.

Updates `mapbox-sdk-core` from 5.3.0 to 5.4.1
- [Release notes](https://github.com/mapbox/mapbox-java/releases)
- [Changelog](https://github.com/mapbox/mapbox-java/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mapbox/mapbox-java/compare/v5.3.0...v5.4.1)

Updates `mapbox-sdk-services` from 5.3.0 to 5.4.1
- [Release notes](https://github.com/mapbox/mapbox-java/releases)
- [Changelog](https://github.com/mapbox/mapbox-java/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mapbox/mapbox-java/compare/v5.3.0...v5.4.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
fobo66/BookcrossingMobile,fobo66/BookcrossingMobile