Bump bytes from 0.5.3 to 0.5.4 (#366)
Bump bytes from 0.5.3 to 0.5.4 (#366)

Bumps [bytes](https://github.com/tokio-rs/bytes) from 0.5.3 to 0.5.4.
- [Release notes](https://github.com/tokio-rs/bytes/releases)
- [Changelog](https://github.com/tokio-rs/bytes/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tokio-rs/bytes/compare/v0.5.3...v0.5.4)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alex/ct-tools,alex/ct-tools