Update mio requirement from 0.8.0 to 1.0.2

Updates the requirements on [mio](https://github.com/tokio-rs/mio) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/mio/releases)
- [Changelog](https://github.com/tokio-rs/mio/blob/master/CHANGELOG.md)
- [Commits](tokio-rs/mio@v0.8.0...v1.0.2)

---
updated-dependencies:
- dependency-name: mio
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -23,7 +23,7 @@ jwt = "0.16.0"
 tokio-core = "0.1.18"
 async-stream = "0.3.2"
 bytes = "1.1.0"
-mio = "0.8.0"
+mio = "1.0.2"
 warp = { version = "0.3.2", features = ["compression", "compression-brotli", "default"] }
 serde = { version = "1.0.130", features = ["derive"] }
 serde_derive = "1.0.136"