chore(deps): bump tokio from 1.38.0 to 1.39.2 (#884)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.38.0 to 1.39.2.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.38.0...tokio-1.39.2)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -20,7 +20,7 @@ serde = "1.0"
 serde_json = "1.0"
 futures = "0.3"
 thiserror = "1.0"
-tokio = { version = "1.38", features = ["macros", "rt-multi-thread", "sync", "signal"] }
+tokio = { version = "1.39", features = ["macros", "rt-multi-thread", "sync", "signal"] }
 pin-project-lite = "0.2"
 
 # subxt