Bump tokio from 1.38.0 to 1.39.2

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] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -21,7 +21,7 @@ nu-plugin = "0.95.0"
 nu-protocol = { version = "0.95.0", features = [ "plugin" ] }
 prometheus-http-query = "0.8.3"
 reqwest = { version = "0.12.5", features = [ "native-tls" ] }
-tokio = { version ="1.38.0", features = [ "macros", "rt" ] }
+tokio = { version ="1.39.2", features = [ "macros", "rt" ] }
 
 [dev-dependencies]
 rstest = { version = "0.21", default-features = false }