Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.20.1 to 1.20.4. - [Release notes](https://github.com/tokio-rs/tokio/releases) - [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.20.1...tokio-1.20.4) --- updated-dependencies: - dependency-name: tokio dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>