chore(deps): bump rxkotlin from 2.3.0 to 2.4.0 (#2209)
chore(deps): bump rxkotlin from 2.3.0 to 2.4.0 (#2209)

Bumps [rxkotlin](https://github.com/ReactiveX/RxKotlin) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/ReactiveX/RxKotlin/releases)
- [Commits](https://github.com/ReactiveX/RxKotlin/compare/2.3.0...2.4.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
fossasia/open-event-android,fossasia/open-event-android,fossasia/open-event-android