Bump crossbeam-channel from 0.3.9 to 0.4.0 in /rust-consumer
Bump crossbeam-channel from 0.3.9 to 0.4.0 in /rust-consumer

Bumps [crossbeam-channel](https://github.com/crossbeam-rs/crossbeam) from 0.3.9 to 0.4.0.
- [Release notes](https://github.com/crossbeam-rs/crossbeam/releases)
- [Changelog](https://github.com/crossbeam-rs/crossbeam/blob/master/CHANGELOG.md)
- [Commits](https://github.com/crossbeam-rs/crossbeam/compare/crossbeam-channel-0.3.9...crossbeam-channel-0.4.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
cstorey/nrod,cstorey/nrod,cstorey/nrod