Bump tokio from 1.34.0 to 1.38.2

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.34.0 to 1.38.2.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](https://github.com/tokio-rs/tokio/compare/tokio-1.34.0...tokio-1.38.2)

---
updated-dependencies:
- dependency-name: tokio
  dependency-version: 1.38.2
  dependency-type: direct:production
...

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

Cargo.toml

@@ -15,7 +15,7 @@ flexi_logger = { version = "0.25.6", features = ["specfile_without_notification"
 log = "0.4.20"
 serde = { version = "1.0.183", features = ["derive"] }
 serde_derive = "1.0.183"
-tokio = { version = "1.31.0", features = ["io-std", "net", "rt-multi-thread", "macros"] }
+tokio = { version = "1.38.2", features = ["io-std", "net", "rt-multi-thread", "macros"] }
 tokio-stream = "0.1.11"
 tokio-util = "0.7.4"
 toml = "0.7.4"