Update mio requirement from ^0.6.23 to ^1.0.3

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@v0.6.23...v1.0.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -40,7 +40,7 @@ pre-iron-gid = []
 # rustdds = {   git = "https://github.com/Atostek/RustDDS.git" }
 rustdds = {  version = "~0.11.1"  } # release setting
 
-mio = "^0.6.23"
+mio = "^1.0.3"
 mio-extras = "2.0.6"
 log = "0.4.11"
 serde = { version = "1.0", features = ["derive"] }